22304021313 has 8 divisors (see below), whose sum is σ = 33987080128. Its totient is φ = 12745155024.

The previous prime is 22304021303. The next prime is 22304021407. The reversal of 22304021313 is 31312040322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22304021313 - 2¹⁶ = 22303955777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1062096253 = 22304021313 / (2 + 2 + 3 + 0 + 4 + 0 + 2 + 1 + 3 + 1 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22304021313.

It is not an unprimeable number, because it can be changed into a prime (22304021303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531048106 + ... + 531048147.

It is an arithmetic number, because the mean of its divisors is an integer number (4248385016).

Almost surely, 2^22304021313 is an apocalyptic number.

It is an amenable number.

22304021313 is a deficient number, since it is larger than the sum of its proper divisors (11683058815).

22304021313 is a wasteful number, since it uses less digits than its factorization.

22304021313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062096263.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 22304021313 its reverse (31312040322), we get a palindrome (53616061635).

The spelling of 22304021313 in words is "twenty-two billion, three hundred four million, twenty-one thousand, three hundred thirteen".