21300223302 has 24 divisors (see below), whose sum is σ = 46382403600. Its totient is φ = 7064394480.

The previous prime is 21300223297. The next prime is 21300223303. The reversal of 21300223302 is 20332200312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21300223303) 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, 2969649 + ... + 2976812.

It is an arithmetic number, because the mean of its divisors is an integer number (1932600150).

Almost surely, 2^21300223302 is an apocalyptic number.

21300223302 is an abundant number, since it is smaller than the sum of its proper divisors (25082180298).

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

21300223302 is a wasteful number, since it uses less digits than its factorization.

21300223302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5946668 (or 5946665 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 21300223302 its reverse (20332200312), we get a palindrome (41632423614).

The spelling of 21300223302 in words is "twenty-one billion, three hundred million, two hundred twenty-three thousand, three hundred two".