31233210132 has 96 divisors (see below), whose sum is σ = 75562591104. Its totient is φ = 10034841600.

The previous prime is 31233210121. The next prime is 31233210143. The reversal of 31233210132 is 23101233213.

It is an interprime number because it is at equal distance from previous prime (31233210121) and next prime (31233210143).

It is a junction number, because it is equal to n+sod(n) for n = 31233210099 and 31233210108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12794032 + ... + 12796472.

It is an arithmetic number, because the mean of its divisors is an integer number (787110324).

Almost surely, 2^31233210132 is an apocalyptic number.

It is an amenable number.

31233210132 is an abundant number, since it is smaller than the sum of its proper divisors (44329380972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31233210132 is a wasteful number, since it uses less digits than its factorization.

31233210132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2809 (or 2807 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31233210132 its reverse (23101233213), we get a palindrome (54334443345).

The spelling of 31233210132 in words is "thirty-one billion, two hundred thirty-three million, two hundred ten thousand, one hundred thirty-two".