311135664403 has 4 divisors (see below), whose sum is σ = 311141284168. Its totient is φ = 311130044640.

The previous prime is 311135664361. The next prime is 311135664431. The reversal of 311135664403 is 304466531113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304466531113 = 433 ⋅703155961.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311135664403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311135694403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2726001 + ... + 2837842.

It is an arithmetic number, because the mean of its divisors is an integer number (77785321042).

Almost surely, 2^311135664403 is an apocalyptic number.

311135664403 is a deficient number, since it is larger than the sum of its proper divisors (5619765).

311135664403 is an equidigital number, since it uses as much as digits as its factorization.

311135664403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5619764.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 311135664403 in words is "three hundred eleven billion, one hundred thirty-five million, six hundred sixty-four thousand, four hundred three".