21323113010 has 64 divisors (see below), whose sum is σ = 40800672000. Its totient is φ = 8007005952.

The previous prime is 21323113001. The next prime is 21323113027. The reversal of 21323113010 is 1031132312.

It is a self number, because there is not a number n which added to its sum of digits gives 21323113010.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2678516 + ... + 2686464.

It is an arithmetic number, because the mean of its divisors is an integer number (637510500).

Almost surely, 2^21323113010 is an apocalyptic number.

21323113010 is a deficient number, since it is larger than the sum of its proper divisors (19477558990).

21323113010 is a wasteful number, since it uses less digits than its factorization.

21323113010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8195.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21323113010 its reverse (1031132312), we get a palindrome (22354245322).

The spelling of 21323113010 in words is "twenty-one billion, three hundred twenty-three million, one hundred thirteen thousand, ten".