20232013021 has 16 divisors (see below), whose sum is σ = 23632197120. Its totient is φ = 17116295680.

The previous prime is 20232013013. The next prime is 20232013063. The reversal of 20232013021 is 12031023202.

It is not a de Polignac number, because 20232013021 - 2³ = 20232013013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20232012986 and 20232013004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20232010021) 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, 591181 + ... + 624466.

It is an arithmetic number, because the mean of its divisors is an integer number (1477012320).

Almost surely, 2^20232013021 is an apocalyptic number.

It is an amenable number.

20232013021 is a deficient number, since it is larger than the sum of its proper divisors (3400184099).

20232013021 is a wasteful number, since it uses less digits than its factorization.

20232013021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215764.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20232013021 its reverse (12031023202), we get a palindrome (32263036223).

The spelling of 20232013021 in words is "twenty billion, two hundred thirty-two million, thirteen thousand, twenty-one".