31233223112 has 64 divisors (see below), whose sum is σ = 75870211200. Its totient is φ = 11705679360.

The previous prime is 31233223069. The next prime is 31233223159. The reversal of 31233223112 is 21132233213.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1115189 + ... + 1142852.

It is an arithmetic number, because the mean of its divisors is an integer number (1185472050).

Almost surely, 2^31233223112 is an apocalyptic number.

It is an amenable number.

31233223112 is an abundant number, since it is smaller than the sum of its proper divisors (44636988088).

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

31233223112 is a wasteful number, since it uses less digits than its factorization.

31233223112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2258086 (or 2258082 counting only the distinct ones).

The product of its digits is 1296, while the sum is 23.

Adding to 31233223112 its reverse (21132233213), we get a palindrome (52365456325).

The spelling of 31233223112 in words is "thirty-one billion, two hundred thirty-three million, two hundred twenty-three thousand, one hundred twelve".