21003321010302 has 24 divisors (see below), whose sum is σ = 45516690221184. Its totient is φ = 6999646280544.

The previous prime is 21003321010297. The next prime is 21003321010327. The reversal of 21003321010302 is 20301012330012.

21003321010302 is a `hidden beast` number, since 2 + 10 + 0 + 332 + 10 + 10 + 302 = 666.

It is a super-2 number, since 2×21003321010302² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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, 121638238 + ... + 121810785.

It is an arithmetic number, because the mean of its divisors is an integer number (1896528759216).

Almost surely, 2^{21003321010302} is an apocalyptic number.

21003321010302 is an abundant number, since it is smaller than the sum of its proper divisors (24513369210882).

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

21003321010302 is a wasteful number, since it uses less digits than its factorization.

21003321010302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243453824 (or 243453821 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21003321010302 its reverse (20301012330012), we get a palindrome (41304333340314).

The spelling of 21003321010302 in words is "twenty-one trillion, three billion, three hundred twenty-one million, ten thousand, three hundred two".