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131330231011 = 7375331130763
BaseRepresentation
bin111101001001111100…
…1000100101011100011
3110112222121222222112001
41322103321010223203
54122431014343021
6140155434344431
712326325354610
oct1722371045343
9415877888461
10131330231011
1150773545401
122155228b117
13c4cc665985
1464dc019507
153639a26091
hex1e93e44ae3

131330231011 has 32 divisors (see below), whose sum is σ = 157566809088. Its totient is φ = 107110823040.

The previous prime is 131330231003. The next prime is 131330231051. The reversal of 131330231011 is 110132033131.

It is a cyclic number.

It is not a de Polignac number, because 131330231011 - 23 = 131330231003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131330231011.

It is not an unprimeable number, because it can be changed into a prime (131330231051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4253716 + ... + 4284478.

It is an arithmetic number, because the mean of its divisors is an integer number (4923962784).

Almost surely, 2131330231011 is an apocalyptic number.

131330231011 is a deficient number, since it is larger than the sum of its proper divisors (26236578077).

131330231011 is a wasteful number, since it uses less digits than its factorization.

131330231011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31171.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 131330231011 its reverse (110132033131), we get a palindrome (241462264142).

The spelling of 131330231011 in words is "one hundred thirty-one billion, three hundred thirty million, two hundred thirty-one thousand, eleven".

Divisors: 1 7 37 53 259 311 371 1961 2177 11507 13727 16483 30763 80549 115381 215341 609871 1138231 1630439 4269097 7967617 9567293 11413073 60326243 66971051 353989841 422283701 507066529 2477928887 3549465703 18761461573 131330231011