3231131320120 has 128 divisors (see below), whose sum is σ = 8468244195840. Its totient is φ = 1097735063040.

The previous prime is 3231131320099. The next prime is 3231131320147. The reversal of 3231131320120 is 210231311323.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 3231131320091 and 3231131320100.

It is a congruent number.

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, 3277419 + ... + 4147738.

It is an arithmetic number, because the mean of its divisors is an integer number (66158157780).

Almost surely, 2^{3231131320120} is an apocalyptic number.

It is an amenable number.

3231131320120 is an abundant number, since it is smaller than the sum of its proper divisors (5237112875720).

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

3231131320120 is a wasteful number, since it uses less digits than its factorization.

3231131320120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7425245 (or 7425241 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 3231131320120 its reverse (210231311323), we get a palindrome (3441362631443).

The spelling of 3231131320120 in words is "three trillion, two hundred thirty-one billion, one hundred thirty-one million, three hundred twenty thousand, one hundred twenty".