20331312123210 has 64 divisors (see below), whose sum is σ = 53315432146944. Its totient is φ = 4920991790400.

The previous prime is 20331312123191. The next prime is 20331312123233. The reversal of 20331312123210 is 1232121313302.

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, 48611134 + ... + 49027593.

It is an arithmetic number, because the mean of its divisors is an integer number (833053627296).

Almost surely, 2^{20331312123210} is an apocalyptic number.

20331312123210 is an abundant number, since it is smaller than the sum of its proper divisors (32984120023734).

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

20331312123210 is a wasteful number, since it uses less digits than its factorization.

20331312123210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97639379.

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

Adding to 20331312123210 its reverse (1232121313302), we get a palindrome (21563433436512).

The spelling of 20331312123210 in words is "twenty trillion, three hundred thirty-one billion, three hundred twelve million, one hundred twenty-three thousand, two hundred ten".