21103302000 has 160 divisors (see below), whose sum is σ = 74222463744. Its totient is φ = 5115936000.

The previous prime is 21103301983. The next prime is 21103302023. The reversal of 21103302000 is 20330112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

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, 93874 + ... + 225873.

Almost surely, 2^21103302000 is an apocalyptic number.

21103302000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21103302000 is an abundant number, since it is smaller than the sum of its proper divisors (53119161744).

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

21103302000 is a wasteful number, since it uses less digits than its factorization.

21103302000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319784 (or 319768 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 21103302000 its reverse (20330112), we get a palindrome (21123632112).

The spelling of 21103302000 in words is "twenty-one billion, one hundred three million, three hundred two thousand".