23003112021 has 4 divisors (see below), whose sum is σ = 30670816032. Its totient is φ = 15335408012.

The previous prime is 23003111981. The next prime is 23003112043. The reversal of 23003112021 is 12021130032.

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 23003112021 - 2¹⁴ = 23003095637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23003112221) 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, 3833852001 + ... + 3833852006.

It is an arithmetic number, because the mean of its divisors is an integer number (7667704008).

Almost surely, 2^23003112021 is an apocalyptic number.

It is an amenable number.

23003112021 is a deficient number, since it is larger than the sum of its proper divisors (7667704011).

23003112021 is an equidigital number, since it uses as much as digits as its factorization.

23003112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7667704010.

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

Adding to 23003112021 its reverse (12021130032), we get a palindrome (35024242053).

The spelling of 23003112021 in words is "twenty-three billion, three million, one hundred twelve thousand, twenty-one".