131102103231 has 32 divisors (see below), whose sum is σ = 211903395840. Its totient is φ = 79447867200.

The previous prime is 131102103229. The next prime is 131102103247. The reversal of 131102103231 is 132301201131.

131102103231 is a `hidden beast` number, since 131 + 1 + 0 + 210 + 323 + 1 = 666.

It is not a de Polignac number, because 131102103231 - 2¹ = 131102103229 is a prime.

It is a super-2 number, since 2×131102103231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131102103211) 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, 4518651 + ... + 4547571.

It is an arithmetic number, because the mean of its divisors is an integer number (6621981120).

Almost surely, 2^131102103231 is an apocalyptic number.

131102103231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131102103231 is a deficient number, since it is larger than the sum of its proper divisors (80801292609).

131102103231 is a wasteful number, since it uses less digits than its factorization.

131102103231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44204 (or 44198 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 131102103231 its reverse (132301201131), we get a palindrome (263403304362).

The spelling of 131102103231 in words is "one hundred thirty-one billion, one hundred two million, one hundred three thousand, two hundred thirty-one".