31331322200120 has 64 divisors (see below), whose sum is σ = 71351718480000. Its totient is φ = 12380337019008.

The previous prime is 31331322200107. The next prime is 31331322200131. The reversal of 31331322200120 is 2100222313313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34272731 + ... + 35175029.

It is an arithmetic number, because the mean of its divisors is an integer number (1114870601250).

Almost surely, 2^{31331322200120} is an apocalyptic number.

It is an amenable number.

31331322200120 is an abundant number, since it is smaller than the sum of its proper divisors (40020396279880).

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

31331322200120 is a wasteful number, since it uses less digits than its factorization.

31331322200120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912852 (or 912848 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31331322200120 its reverse (2100222313313), we get a palindrome (33431544513433).

The spelling of 31331322200120 in words is "thirty-one trillion, three hundred thirty-one billion, three hundred twenty-two million, two hundred thousand, one hundred twenty".