311435454131320 has 64 divisors (see below), whose sum is σ = 752399158564800. Its totient is φ = 115594932418560.

The previous prime is 311435454131293. The next prime is 311435454131327. The reversal of 311435454131320 is 23131454534113.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311435454131327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3225256755 + ... + 3225353314.

It is an arithmetic number, because the mean of its divisors is an integer number (11756236852575).

Almost surely, 2^{311435454131320} is an apocalyptic number.

It is an amenable number.

311435454131320 is an abundant number, since it is smaller than the sum of its proper divisors (440963704433480).

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

311435454131320 is a wasteful number, since it uses less digits than its factorization.

311435454131320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6450610168 (or 6450610164 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 311435454131320 in words is "three hundred eleven trillion, four hundred thirty-five billion, four hundred fifty-four million, one hundred thirty-one thousand, three hundred twenty".