31213113012332 has 24 divisors (see below), whose sum is σ = 55897850245776. Its totient is φ = 15242358414528.

The previous prime is 31213113012329. The next prime is 31213113012349. The reversal of 31213113012332 is 23321031131213.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5372663 + ... + 9554670.

It is an arithmetic number, because the mean of its divisors is an integer number (2329077093574).

Almost surely, 2^{31213113012332} is an apocalyptic number.

It is an amenable number.

31213113012332 is a deficient number, since it is larger than the sum of its proper divisors (24684737233444).

31213113012332 is a wasteful number, since it uses less digits than its factorization.

31213113012332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14939537 (or 14939535 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 31213113012332 its reverse (23321031131213), we get a palindrome (54534144143545).

The spelling of 31213113012332 in words is "thirty-one trillion, two hundred thirteen billion, one hundred thirteen million, twelve thousand, three hundred thirty-two".