311880376443 has 16 divisors (see below), whose sum is σ = 418044692736. Its totient is φ = 206818627680.

The previous prime is 311880376343. The next prime is 311880376459. The reversal of 311880376443 is 344673088113.

It is not a de Polignac number, because 311880376443 - 2²⁰ = 311879327867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 311880376392 and 311880376401.

It is not an unprimeable number, because it can be changed into a prime (311880376243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2699248 + ... + 2812418.

It is an arithmetic number, because the mean of its divisors is an integer number (26127793296).

Almost surely, 2^311880376443 is an apocalyptic number.

311880376443 is a deficient number, since it is larger than the sum of its proper divisors (106164316293).

311880376443 is a wasteful number, since it uses less digits than its factorization.

311880376443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118034.

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 311880376443 in words is "three hundred eleven billion, eight hundred eighty million, three hundred seventy-six thousand, four hundred forty-three".