311022412993 has 4 divisors (see below), whose sum is σ = 311048722480. Its totient is φ = 310996103508.

The previous prime is 311022412979. The next prime is 311022413021. The reversal of 311022412993 is 399214220113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 399214220113 = 505691 ⋅789443.

It is a cyclic number.

It is not a de Polignac number, because 311022412993 - 2²⁵ = 310988858561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311022412933) 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, 13137003 + ... + 13160656.

It is an arithmetic number, because the mean of its divisors is an integer number (77762180620).

Almost surely, 2^311022412993 is an apocalyptic number.

It is an amenable number.

311022412993 is a deficient number, since it is larger than the sum of its proper divisors (26309487).

311022412993 is a wasteful number, since it uses less digits than its factorization.

311022412993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26309486.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 311022412993 in words is "three hundred eleven billion, twenty-two million, four hundred twelve thousand, nine hundred ninety-three".