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131321200223 = 19234173100403
BaseRepresentation
bin111101001001101011…
…0100111111001011111
3110112222000000011121102
41322103112213321133
54122421211401343
6140154513023315
712326155533023
oct1722326477137
9415860004542
10131321200223
1150769437444
122154b254b3b
13c4ca823305
1464dab48383
153638d403b8
hex1e935a7e5f

131321200223 has 32 divisors (see below), whose sum is σ = 149786703360. Its totient is φ = 114506472960.

The previous prime is 131321200217. The next prime is 131321200249. The reversal of 131321200223 is 322002123131.

It is a cyclic number.

It is not a de Polignac number, because 131321200223 - 24 = 131321200207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131321200195 and 131321200204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131321208223) 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, 1257740 + ... + 1358142.

It is an arithmetic number, because the mean of its divisors is an integer number (4680834480).

Almost surely, 2131321200223 is an apocalyptic number.

131321200223 is a deficient number, since it is larger than the sum of its proper divisors (18465503137).

131321200223 is a wasteful number, since it uses less digits than its factorization.

131321200223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100559.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 131321200223 its reverse (322002123131), we get a palindrome (453323323354).

The spelling of 131321200223 in words is "one hundred thirty-one billion, three hundred twenty-one million, two hundred thousand, two hundred twenty-three".

Divisors: 1 19 23 41 73 437 779 943 1387 1679 2993 17917 31901 56867 68839 100403 1307941 1907657 2309269 4116523 7329419 43876111 78213937 94680029 139258961 168576637 300506179 1798920551 3202956103 5709617401 6911642117 131321200223