31233210122120 has 32 divisors (see below), whose sum is σ = 70746365223000. Its totient is φ = 12409436502528.

The previous prime is 31233210122117. The next prime is 31233210122171. The reversal of 31233210122120 is 2122101233213.

It can be written as a sum of positive squares in 4 ways, for example, as 18246686164996 + 12986523957124 = 4271614^2 + 3603682^2 .

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, 2620229789 + ... + 2620241708.

Almost surely, 2^{31233210122120} is an apocalyptic number.

It is an amenable number.

31233210122120 is an abundant number, since it is smaller than the sum of its proper divisors (39513155100880).

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

31233210122120 is a wasteful number, since it uses less digits than its factorization.

31233210122120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5240471657 (or 5240471653 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31233210122120 its reverse (2122101233213), we get a palindrome (33355311355333).

The spelling of 31233210122120 in words is "thirty-one trillion, two hundred thirty-three billion, two hundred ten million, one hundred twenty-two thousand, one hundred twenty".