23330223021 has 16 divisors (see below), whose sum is σ = 36776707200. Its totient is φ = 12871846848.

The previous prime is 23330223013. The next prime is 23330223047. The reversal of 23330223021 is 12032203332.

It is not a de Polignac number, because 23330223021 - 2³ = 23330223013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23330223221) 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, 19153926 + ... + 19155143.

It is an arithmetic number, because the mean of its divisors is an integer number (2298544200).

Almost surely, 2^23330223021 is an apocalyptic number.

23330223021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23330223021 is a deficient number, since it is larger than the sum of its proper divisors (13446484179).

23330223021 is a wasteful number, since it uses less digits than its factorization.

23330223021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38309108.

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

Adding to 23330223021 its reverse (12032203332), we get a palindrome (35362426353).

The spelling of 23330223021 in words is "twenty-three billion, three hundred thirty million, two hundred twenty-three thousand, twenty-one".