31233031242 has 32 divisors (see below), whose sum is σ = 71704300032. Its totient is φ = 8884408944.

The previous prime is 31233031211. The next prime is 31233031259. The reversal of 31233031242 is 24213033213.

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, 1628448 + ... + 1647515.

It is an arithmetic number, because the mean of its divisors is an integer number (2240759376).

Almost surely, 2^31233031242 is an apocalyptic number.

31233031242 is an abundant number, since it is smaller than the sum of its proper divisors (40471268790).

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

31233031242 is a wasteful number, since it uses less digits than its factorization.

31233031242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3276202.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 31233031242 its reverse (24213033213), we get a palindrome (55446064455).

The spelling of 31233031242 in words is "thirty-one billion, two hundred thirty-three million, thirty-one thousand, two hundred forty-two".