23030303021 has 16 divisors (see below), whose sum is σ = 25561958400. Its totient is φ = 20571985200.

The previous prime is 23030302957. The next prime is 23030303033. The reversal of 23030303021 is 12030303032.

It is a cyclic number.

It is not a de Polignac number, because 23030303021 - 2⁶ = 23030302957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23030303041) 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, 1588676 + ... + 1603106.

It is an arithmetic number, because the mean of its divisors is an integer number (1597622400).

Almost surely, 2^23030303021 is an apocalyptic number.

It is an amenable number.

23030303021 is a deficient number, since it is larger than the sum of its proper divisors (2531655379).

23030303021 is a wasteful number, since it uses less digits than its factorization.

23030303021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16960.

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 23030303021 its reverse (12030303032), we get a palindrome (35060606053).

The spelling of 23030303021 in words is "twenty-three billion, thirty million, three hundred three thousand, twenty-one".