21022023300 has 36 divisors (see below), whose sum is σ = 60823721616. Its totient is φ = 5605872800.

The previous prime is 21022023283. The next prime is 21022023317. The reversal of 21022023300 is 332022012.

It is an interprime number because it is at equal distance from previous prime (21022023283) and next prime (21022023317).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 21022023300.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35036406 + ... + 35037005.

Almost surely, 2^21022023300 is an apocalyptic number.

21022023300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21022023300 is an abundant number, since it is smaller than the sum of its proper divisors (39801698316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21022023300 is a wasteful number, since it uses less digits than its factorization.

21022023300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70073428 (or 70073421 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 21022023300 its reverse (332022012), we get a palindrome (21354045312).

The spelling of 21022023300 in words is "twenty-one billion, twenty-two million, twenty-three thousand, three hundred".