311320103120 has 40 divisors (see below), whose sum is σ = 779497645416. Its totient is φ = 114948960768.

The previous prime is 311320103093. The next prime is 311320103123. The reversal of 311320103120 is 21301023113.

It can be written as a sum of positive squares in 4 ways, for example, as 4873715344 + 306446387776 = 69812^2 + 553576^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311320103123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149672087 + ... + 149674166.

Almost surely, 2^311320103120 is an apocalyptic number.

It is an amenable number.

311320103120 is an abundant number, since it is smaller than the sum of its proper divisors (468177542296).

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

311320103120 is a wasteful number, since it uses less digits than its factorization.

311320103120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299346279 (or 299346273 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 311320103120 its reverse (21301023113), we get a palindrome (332621126233).

The spelling of 311320103120 in words is "three hundred eleven billion, three hundred twenty million, one hundred three thousand, one hundred twenty".