131031113231031 has 16 divisors (see below), whose sum is σ = 188190029668704. Its totient is φ = 80616192580224.

The previous prime is 131031113231027. The next prime is 131031113231107. The reversal of 131031113231031 is 130132311130131.

It is not a de Polignac number, because 131031113231031 - 2² = 131031113231027 is a prime.

It is a super-2 number, since 2×131031113231031² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131031113230992 and 131031113231010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131031113231131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381881296 + ... + 382224261.

It is an arithmetic number, because the mean of its divisors is an integer number (11761876854294).

Almost surely, 2^{131031113231031} is an apocalyptic number.

131031113231031 is a deficient number, since it is larger than the sum of its proper divisors (57158916437673).

131031113231031 is a wasteful number, since it uses less digits than its factorization.

131031113231031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764109970.

The product of its (nonzero) digits is 486, while the sum is 24.

Adding to 131031113231031 its reverse (130132311130131), we get a palindrome (261163424361162).

The spelling of 131031113231031 in words is "one hundred thirty-one trillion, thirty-one billion, one hundred thirteen million, two hundred thirty-one thousand, thirty-one".