21322803052 has 12 divisors (see below), whose sum is σ = 37327270176. Its totient is φ = 10657868720.

The previous prime is 21322803037. The next prime is 21322803053. The reversal of 21322803052 is 25030822312.

It is a self number, because there is not a number n which added to its sum of digits gives 21322803052.

It is not an unprimeable number, because it can be changed into a prime (21322803053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 869599 + ... + 893782.

It is an arithmetic number, because the mean of its divisors is an integer number (3110605848).

Almost surely, 2^21322803052 is an apocalyptic number.

It is an amenable number.

21322803052 is a deficient number, since it is larger than the sum of its proper divisors (16004467124).

21322803052 is a wasteful number, since it uses less digits than its factorization.

21322803052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1766408 (or 1766406 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 21322803052 in words is "twenty-one billion, three hundred twenty-two million, eight hundred three thousand, fifty-two".