31120120244312 has 64 divisors (see below), whose sum is σ = 65940014800800. Its totient is φ = 13645434880000.

The previous prime is 31120120244303. The next prime is 31120120244377. The reversal of 31120120244312 is 21344202102113.

It is a happy number.

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, 48135689 + ... + 48777912.

Almost surely, 2^{31120120244312} is an apocalyptic number.

It is an amenable number.

31120120244312 is an abundant number, since it is smaller than the sum of its proper divisors (34819894556488).

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

31120120244312 is a wasteful number, since it uses less digits than its factorization.

31120120244312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96913748 (or 96913744 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 31120120244312 its reverse (21344202102113), we get a palindrome (52464322346425).

The spelling of 31120120244312 in words is "thirty-one trillion, one hundred twenty billion, one hundred twenty million, two hundred forty-four thousand, three hundred twelve".