23011000321 has 4 divisors (see below), whose sum is σ = 23186656944. Its totient is φ = 22835343700.

The previous prime is 23011000319. The next prime is 23011000409. The reversal of 23011000321 is 12300011032.

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.

It is a cyclic number.

It is not a de Polignac number, because 23011000321 - 2¹ = 23011000319 is a prime.

It is a super-2 number, since 2×23011000321² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23011000021) 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, 87828115 + ... + 87828376.

It is an arithmetic number, because the mean of its divisors is an integer number (5796664236).

It is a Proth number, since it is equal to 21945 ⋅ 2²⁰ + 1 and 21945 < 2²⁰.

Almost surely, 2^23011000321 is an apocalyptic number.

It is an amenable number.

23011000321 is a deficient number, since it is larger than the sum of its proper divisors (175656623).

23011000321 is a wasteful number, since it uses less digits than its factorization.

23011000321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175656622.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 23011000321 its reverse (12300011032), we get a palindrome (35311011353).

The spelling of 23011000321 in words is "twenty-three billion, eleven million, three hundred twenty-one", and thus it is an aban number.