23020011321 has 32 divisors (see below), whose sum is σ = 32688230400. Its totient is φ = 14359968000.

The previous prime is 23020011299. The next prime is 23020011347. The reversal of 23020011321 is 12311002032.

It is not a de Polignac number, because 23020011321 - 2¹⁰ = 23020010297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23020011321.

It is not an unprimeable number, because it can be changed into a prime (23020011121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10225446 + ... + 10227696.

It is an arithmetic number, because the mean of its divisors is an integer number (1021507200).

Almost surely, 2^23020011321 is an apocalyptic number.

It is an amenable number.

23020011321 is a deficient number, since it is larger than the sum of its proper divisors (9668219079).

23020011321 is a wasteful number, since it uses less digits than its factorization.

23020011321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3349.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 23020011321 its reverse (12311002032), we get a palindrome (35331013353).

The spelling of 23020011321 in words is "twenty-three billion, twenty million, eleven thousand, three hundred twenty-one".