23023022021 has 8 divisors (see below), whose sum is σ = 24400312344. Its totient is φ = 21648286720.

The previous prime is 23023021993. The next prime is 23023022023. The reversal of 23023022021 is 12022032032.

It can be written as a sum of positive squares in 4 ways, for example, as 10414202500 + 12608819521 = 102050^2 + 112289^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23023022021 - 2¹⁰ = 23023020997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23023022023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620180 + ... + 656253.

It is an arithmetic number, because the mean of its divisors is an integer number (3050039043).

Almost surely, 2^23023022021 is an apocalyptic number.

It is an amenable number.

23023022021 is a deficient number, since it is larger than the sum of its proper divisors (1377290323).

23023022021 is a wasteful number, since it uses less digits than its factorization.

23023022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277511.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 23023022021 its reverse (12022032032), we get a palindrome (35045054053).

The spelling of 23023022021 in words is "twenty-three billion, twenty-three million, twenty-two thousand, twenty-one".