311730690369 has 16 divisors (see below), whose sum is σ = 475993607168. Its totient is φ = 177766043472.

The previous prime is 311730690307. The next prime is 311730690409. The reversal of 311730690369 is 963096037113.

It is not a de Polignac number, because 311730690369 - 2⁷ = 311730690241 is a prime.

It is a super-2 number, since 2×311730690369² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311730890369) 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, 15230347 + ... + 15250800.

It is an arithmetic number, because the mean of its divisors is an integer number (29749600448).

Almost surely, 2^311730690369 is an apocalyptic number.

It is an amenable number.

311730690369 is a deficient number, since it is larger than the sum of its proper divisors (164262916799).

311730690369 is a wasteful number, since it uses less digits than its factorization.

311730690369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30481644.

The product of its (nonzero) digits is 551124, while the sum is 48.

The spelling of 311730690369 in words is "three hundred eleven billion, seven hundred thirty million, six hundred ninety thousand, three hundred sixty-nine".