21002140300 has 36 divisors (see below), whose sum is σ = 45706059000. Its totient is φ = 8376632320.

The previous prime is 21002140297. The next prime is 21002140319. The reversal of 21002140300 is 304120012.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 267925 + ... + 337324.

It is an arithmetic number, because the mean of its divisors is an integer number (1269612750).

Almost surely, 2^21002140300 is an apocalyptic number.

21002140300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21002140300 is an abundant number, since it is smaller than the sum of its proper divisors (24703918700).

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

21002140300 is a wasteful number, since it uses less digits than its factorization.

21002140300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605610 (or 605603 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 21002140300 its reverse (304120012), we get a palindrome (21306260312).

The spelling of 21002140300 in words is "twenty-one billion, two million, one hundred forty thousand, three hundred".