311030013023 has 4 divisors (see below), whose sum is σ = 329325896160. Its totient is φ = 292734129888.

The previous prime is 311030013017. The next prime is 311030013043. The reversal of 311030013023 is 320310030113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320310030113 = 40241 ⋅7959793.

It is a cyclic number.

It is not a de Polignac number, because 311030013023 - 2⁸ = 311030012767 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 18295883119 = 311030013023 / (3 + 1 + 1 + 0 + 3 + 0 + 0 + 1 + 3 + 0 + 2 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311030012992 and 311030013010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311030013043) 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, 9147941543 + ... + 9147941576.

It is an arithmetic number, because the mean of its divisors is an integer number (82331474040).

Almost surely, 2^311030013023 is an apocalyptic number.

311030013023 is a deficient number, since it is larger than the sum of its proper divisors (18295883137).

311030013023 is a wasteful number, since it uses less digits than its factorization.

311030013023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18295883136.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 311030013023 its reverse (320310030113), we get a palindrome (631340043136).

The spelling of 311030013023 in words is "three hundred eleven billion, thirty million, thirteen thousand, twenty-three".