31321231122112 has 56 divisors (see below), whose sum is σ = 62284856634000. Its totient is φ = 15627443859456.

The previous prime is 31321231122107. The next prime is 31321231122131. The reversal of 31321231122112 is 21122113212313.

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, 57398268 + ... + 57941380.

It is an arithmetic number, because the mean of its divisors is an integer number (1112229582750).

Almost surely, 2^{31321231122112} is an apocalyptic number.

31321231122112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31321231122112 is a deficient number, since it is larger than the sum of its proper divisors (30963625511888).

31321231122112 is a wasteful number, since it uses less digits than its factorization.

31321231122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545033 (or 545023 counting only the distinct ones).

The product of its digits is 864, while the sum is 25.

Adding to 31321231122112 its reverse (21122113212313), we get a palindrome (52443344334425).

The spelling of 31321231122112 in words is "thirty-one trillion, three hundred twenty-one billion, two hundred thirty-one million, one hundred twenty-two thousand, one hundred twelve".