31233013122120 has 128 divisors (see below), whose sum is σ = 93768174806400. Its totient is φ = 8322660366336.

The previous prime is 31233013122109. The next prime is 31233013122139. The reversal of 31233013122120 is 2122131033213.

It is a super-2 number, since 2×31233013122120² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1092163662 + ... + 1092192258.

It is an arithmetic number, because the mean of its divisors is an integer number (732563865675).

Almost surely, 2^{31233013122120} is an apocalyptic number.

31233013122120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31233013122120 is an abundant number, since it is smaller than the sum of its proper divisors (62535161684280).

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

31233013122120 is a wasteful number, since it uses less digits than its factorization.

31233013122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35007 (or 35003 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31233013122120 its reverse (2122131033213), we get a palindrome (33355144155333).

The spelling of 31233013122120 in words is "thirty-one trillion, two hundred thirty-three billion, thirteen million, one hundred twenty-two thousand, one hundred twenty".