320023113031 has 4 divisors (see below), whose sum is σ = 323878813272. Its totient is φ = 316167412792.

The previous prime is 320023112977. The next prime is 320023113049. The reversal of 320023113031 is 130311320023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130311320023 = 45827 ⋅2843549.

It is a cyclic number.

It is not a de Polignac number, because 320023113031 - 2³⁵ = 285663374663 is a prime.

It is a super-2 number, since 2×320023113031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320023113331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1927849996 + ... + 1927850161.

It is an arithmetic number, because the mean of its divisors is an integer number (80969703318).

Almost surely, 2^320023113031 is an apocalyptic number.

320023113031 is a deficient number, since it is larger than the sum of its proper divisors (3855700241).

320023113031 is an equidigital number, since it uses as much as digits as its factorization.

320023113031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3855700240.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 320023113031 its reverse (130311320023), we get a palindrome (450334433054).

The spelling of 320023113031 in words is "three hundred twenty billion, twenty-three million, one hundred thirteen thousand, thirty-one".