23021130331 has 4 divisors (see below), whose sum is σ = 23026645912. Its totient is φ = 23015614752.

The previous prime is 23021130323. The next prime is 23021130337. The reversal of 23021130331 is 13303112032.

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 23021130331 - 2³ = 23021130323 is a prime.

It is a super-2 number, since 2×23021130331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23021130299 and 23021130308.

It is not an unprimeable number, because it can be changed into a prime (23021130337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2751525 + ... + 2759878.

It is an arithmetic number, because the mean of its divisors is an integer number (5756661478).

Almost surely, 2^23021130331 is an apocalyptic number.

23021130331 is a deficient number, since it is larger than the sum of its proper divisors (5515581).

23021130331 is an equidigital number, since it uses as much as digits as its factorization.

23021130331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5515580.

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

Adding to 23021130331 its reverse (13303112032), we get a palindrome (36324242363).

The spelling of 23021130331 in words is "twenty-three billion, twenty-one million, one hundred thirty thousand, three hundred thirty-one".