21015014300 has 72 divisors (see below), whose sum is σ = 52143995904. Its totient is φ = 7201448640.

The previous prime is 21015014263. The next prime is 21015014327. The reversal of 21015014300 is 341051012.

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 23 ways as a sum of consecutive naturals, for example, 1594337 + ... + 1607463.

Almost surely, 2^21015014300 is an apocalyptic number.

21015014300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21015014300 is an abundant number, since it is smaller than the sum of its proper divisors (31128981604).

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

21015014300 is a wasteful number, since it uses less digits than its factorization.

21015014300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15435 (or 15428 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 21015014300 its reverse (341051012), we get a palindrome (21356065312).

The spelling of 21015014300 in words is "twenty-one billion, fifteen million, fourteen thousand, three hundred".