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131323323131 = 721113198571151
BaseRepresentation
bin111101001001101111…
…0101110001011111011
3110112222011000000200122
41322103132232023323
54122422232320011
6140155030323455
712326212554200
oct1722336561373
9415864000618
10131323323131
115076a657410
122154bab958b
13c4cb0b7680
1464db13bca7
15363910e3db
hex1e937ae2fb

131323323131 has 96 divisors (see below), whose sum is σ = 189301432320. Its totient is φ = 89304768000.

The previous prime is 131323323091. The next prime is 131323323163.

131323323131 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2k-131323323131 is a prime.

It is a super-3 number, since 3×1313233231313 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 131323323131.

It is not an unprimeable number, because it can be changed into a prime (131323323331) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 114094406 + ... + 114095556.

It is an arithmetic number, because the mean of its divisors is an integer number (1971889920).

Almost surely, 2131323323131 is an apocalyptic number.

131323323131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131323323131 is a deficient number, since it is larger than the sum of its proper divisors (57978109189).

131323323131 is a wasteful number, since it uses less digits than its factorization.

131323323131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2065 (or 2058 counting only the distinct ones).

The product of its digits is 2916, while the sum is 26.

It can be divided in two parts, 131323 and 323131, that added together give a palindrome (454454).

The spelling of 131323323131 in words is "one hundred thirty-one billion, three hundred twenty-three million, three hundred twenty-three thousand, one hundred thirty-one".

Divisors: 1 7 11 13 19 49 77 91 133 143 209 247 539 637 857 931 1001 1151 1463 1729 2717 5999 7007 8057 9427 10241 11141 12103 12661 14963 16283 19019 21869 41993 56399 65989 77987 88627 104741 113981 122551 133133 153083 164593 179113 211679 240559 284297 461923 545909 620389 733187 797867 857857 986407 1071581 1152151 1253791 1481753 1683913 1990079 2328469 3127267 6004999 6904849 8065057 8776537 10372271 10850477 11787391 12823291 13930553 16299283 18741733 21890869 48333943 75953339 89763037 114094981 131192131 141056201 153236083 206159063 243642529 531673373 628341259 918344917 987393407 1443113441 1705497703 2680067819 6911753849 10101794087 11938483921 18760474733 131323323131