23021373 has 4 divisors (see below), whose sum is σ = 30695168. Its totient is φ = 15347580.

The previous prime is 23021359. The next prime is 23021393. The reversal of 23021373 is 37312032.

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 not a de Polignac number, because 23021373 - 2⁴ = 23021357 is a prime.

It is a super-2 number, since 2×23021373² = 1059967229610258, which 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 (23021333) 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, 3836893 + ... + 3836898.

It is an arithmetic number, because the mean of its divisors is an integer number (7673792).

Almost surely, 2^23021373 is an apocalyptic number.

It is an amenable number.

23021373 is a deficient number, since it is larger than the sum of its proper divisors (7673795).

23021373 is an equidigital number, since it uses as much as digits as its factorization.

23021373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7673794.

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 23021373 is about 4798.0592951734. The cubic root of 23021373 is about 284.4747605232.

The spelling of 23021373 in words is "twenty-three million, twenty-one thousand, three hundred seventy-three".