23033403021 has 16 divisors (see below), whose sum is σ = 30828764736. Its totient is φ = 15296866176.

The previous prime is 23033403007. The next prime is 23033403047. The reversal of 23033403021 is 12030433032.

It is not a de Polignac number, because 23033403021 - 2¹⁵ = 23033370253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23033403221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3198601 + ... + 3205793.

It is an arithmetic number, because the mean of its divisors is an integer number (1926797796).

Almost surely, 2^23033403021 is an apocalyptic number.

It is an amenable number.

23033403021 is a deficient number, since it is larger than the sum of its proper divisors (7795361715).

23033403021 is a wasteful number, since it uses less digits than its factorization.

23033403021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11132.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 23033403021 its reverse (12030433032), we get a palindrome (35063836053).

The spelling of 23033403021 in words is "twenty-three billion, thirty-three million, four hundred three thousand, twenty-one".