311309419922 has 18 divisors (see below), whose sum is σ = 479970893493. Its totient is φ = 151433622792.

The previous prime is 311309419919. The next prime is 311309419931. The reversal of 311309419922 is 229914903113.

It can be written as a sum of positive squares in 2 ways, for example, as 251162347921 + 60147072001 = 501161^2 + 245249^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=394531.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 29189963 + ... + 29200625.

Almost surely, 2^311309419922 is an apocalyptic number.

311309419922 is a deficient number, since it is larger than the sum of its proper divisors (168661473571).

311309419922 is an frugal number, since it uses more digits than its factorization.

311309419922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21402 (or 10702 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 44.

The spelling of 311309419922 in words is "three hundred eleven billion, three hundred nine million, four hundred nineteen thousand, nine hundred twenty-two".