23500302021 has 12 divisors (see below), whose sum is σ = 38794149472. Its totient is φ = 13428743976.

The previous prime is 23500302013. The next prime is 23500302031. The reversal of 23500302021 is 12020300532.

It is not a de Polignac number, because 23500302021 - 2³ = 23500302013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23500301985 and 23500302003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23500302031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 186510271 + ... + 186510396.

Almost surely, 2^23500302021 is an apocalyptic number.

23500302021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23500302021 is a deficient number, since it is larger than the sum of its proper divisors (15293847451).

23500302021 is a wasteful number, since it uses less digits than its factorization.

23500302021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373020680 (or 373020677 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

Adding to 23500302021 its reverse (12020300532), we get a palindrome (35520602553).

The spelling of 23500302021 in words is "twenty-three billion, five hundred million, three hundred two thousand, twenty-one".