3231313023220 has 24 divisors (see below), whose sum is σ = 7184919546504. Its totient is φ = 1216494314496.

The previous prime is 3231313023157. The next prime is 3231313023259. The reversal of 3231313023220 is 223203131323.

It can be written as a sum of positive squares in 4 ways, for example, as 907359122916 + 2323953900304 = 952554^2 + 1524452^2 .

It is a congruent number.

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, 4751930577 + ... + 4751931256.

It is an arithmetic number, because the mean of its divisors is an integer number (299371647771).

Almost surely, 2^{3231313023220} is an apocalyptic number.

It is an amenable number.

3231313023220 is an abundant number, since it is smaller than the sum of its proper divisors (3953606523284).

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

3231313023220 is a wasteful number, since it uses less digits than its factorization.

3231313023220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9503861859 (or 9503861857 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 3231313023220 its reverse (223203131323), we get a palindrome (3454516154543).

The spelling of 3231313023220 in words is "three trillion, two hundred thirty-one billion, three hundred thirteen million, twenty-three thousand, two hundred twenty".