311032013113 has 4 divisors (see below), whose sum is σ = 311047601040. Its totient is φ = 311016425188.

The previous prime is 311032013087. The next prime is 311032013147. The reversal of 311032013113 is 311310230113.

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: 311310230113 = 109 ⋅2856057157.

It is a cyclic number.

It is not a de Polignac number, because 311032013113 - 2¹⁷ = 311031882041 is a prime.

It is a super-2 number, since 2×311032013113² (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 (311032013213) 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, 7763995 + ... + 7803952.

It is an arithmetic number, because the mean of its divisors is an integer number (77761900260).

Almost surely, 2^311032013113 is an apocalyptic number.

It is an amenable number.

311032013113 is a deficient number, since it is larger than the sum of its proper divisors (15587927).

311032013113 is a wasteful number, since it uses less digits than its factorization.

311032013113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15587926.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 311032013113 its reverse (311310230113), we get a palindrome (622342243226).

The spelling of 311032013113 in words is "three hundred eleven billion, thirty-two million, thirteen thousand, one hundred thirteen".