21303003102000 has 80 divisors (see below), whose sum is σ = 68680882020192. Its totient is φ = 5680800825600.

The previous prime is 21303003101999. The next prime is 21303003102011. The reversal of 21303003102000 is 20130030312.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1775244259 + ... + 1775256258.

Almost surely, 2^{21303003102000} is an apocalyptic number.

21303003102000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21303003102000 is an abundant number, since it is smaller than the sum of its proper divisors (47377878918192).

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

21303003102000 is a wasteful number, since it uses less digits than its factorization.

21303003102000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3550500543 (or 3550500527 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 21303003102000 its reverse (20130030312), we get a palindrome (21323133132312).

The spelling of 21303003102000 in words is "twenty-one trillion, three hundred three billion, three million, one hundred two thousand".