311320123120 has 40 divisors (see below), whose sum is σ = 724727614464. Its totient is φ = 124371777792.

The previous prime is 311320123117. The next prime is 311320123139. The reversal of 311320123120 is 21321023113.

It is a tau number, because it is divible by the number of its divisors (40).

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, 2377584 + ... + 2505103.

Almost surely, 2^311320123120 is an apocalyptic number.

It is an amenable number.

311320123120 is an abundant number, since it is smaller than the sum of its proper divisors (413407491344).

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

311320123120 is a wasteful number, since it uses less digits than its factorization.

311320123120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4883497 (or 4883491 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 311320123120 its reverse (21321023113), we get a palindrome (332641146233).

The spelling of 311320123120 in words is "three hundred eleven billion, three hundred twenty million, one hundred twenty-three thousand, one hundred twenty".