23033470921 has 4 divisors (see below), whose sum is σ = 23776486144. Its totient is φ = 22290455700.

The previous prime is 23033470919. The next prime is 23033470973. The reversal of 23033470921 is 12907433032.

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 23033470921 - 2¹ = 23033470919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23033470981) 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, 371507565 + ... + 371507626.

It is an arithmetic number, because the mean of its divisors is an integer number (5944121536).

Almost surely, 2^23033470921 is an apocalyptic number.

It is an amenable number.

23033470921 is a deficient number, since it is larger than the sum of its proper divisors (743015223).

23033470921 is an equidigital number, since it uses as much as digits as its factorization.

23033470921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743015222.

The product of its (nonzero) digits is 27216, while the sum is 34.

The spelling of 23033470921 in words is "twenty-three billion, thirty-three million, four hundred seventy thousand, nine hundred twenty-one".