210131231013 has 24 divisors (see below), whose sum is σ = 335779494336. Its totient is φ = 125558563200.

The previous prime is 210131231003. The next prime is 210131231021. The reversal of 210131231013 is 310132131012.

210131231013 is a `hidden beast` number, since 210 + 131 + 2 + 310 + 13 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-210131231013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210131231003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14940420 + ... + 14954477.

It is an arithmetic number, because the mean of its divisors is an integer number (13990812264).

Almost surely, 2^210131231013 is an apocalyptic number.

It is an amenable number.

210131231013 is a deficient number, since it is larger than the sum of its proper divisors (125648263323).

210131231013 is a wasteful number, since it uses less digits than its factorization.

210131231013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29894985 (or 29894982 counting only the distinct ones).

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

Adding to 210131231013 its reverse (310132131012), we get a palindrome (520263362025).

It can be divided in two parts, 210131 and 231013, that added together give a palindrome (441144).

The spelling of 210131231013 in words is "two hundred ten billion, one hundred thirty-one million, two hundred thirty-one thousand, thirteen".