2131100103231 has 32 divisors (see below), whose sum is σ = 3524299933440. Its totient is φ = 1261539165600.

The previous prime is 2131100103211. The next prime is 2131100103239. The reversal of 2131100103231 is 1323010011312.

2131100103231 is a `hidden beast` number, since 21 + 311 + 0 + 0 + 10 + 323 + 1 = 666.

It is not a de Polignac number, because 2131100103231 - 2⁵ = 2131100103199 is a prime.

It is a super-2 number, since 2×2131100103231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131100103239) 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, 83422360 + ... + 83447901.

It is an arithmetic number, because the mean of its divisors is an integer number (110134372920).

Almost surely, 2^{2131100103231} is an apocalyptic number.

2131100103231 is a deficient number, since it is larger than the sum of its proper divisors (1393199830209).

2131100103231 is a wasteful number, since it uses less digits than its factorization.

2131100103231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166870324 (or 166870318 counting only the distinct ones).

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

Adding to 2131100103231 its reverse (1323010011312), we get a palindrome (3454110114543).

The spelling of 2131100103231 in words is "two trillion, one hundred thirty-one billion, one hundred million, one hundred three thousand, two hundred thirty-one".