311321313299 has 4 divisors (see below), whose sum is σ = 311960577264. Its totient is φ = 310682049336.

The previous prime is 311321313229. The next prime is 311321313337. The reversal of 311321313299 is 992313123113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 311321313299 - 2³⁶ = 242601836563 is a prime.

It is a super-2 number, since 2×311321313299² (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 (311321313229) 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, 319631252 + ... + 319632225.

It is an arithmetic number, because the mean of its divisors is an integer number (77990144316).

Almost surely, 2^311321313299 is an apocalyptic number.

311321313299 is a deficient number, since it is larger than the sum of its proper divisors (639263965).

311321313299 is an equidigital number, since it uses as much as digits as its factorization.

311321313299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639263964.

The product of its digits is 26244, while the sum is 38.

It can be divided in two parts, 31132 and 1313299, that added together give a palindrome (1344431).

The spelling of 311321313299 in words is "three hundred eleven billion, three hundred twenty-one million, three hundred thirteen thousand, two hundred ninety-nine".