21000004312302 has 48 divisors (see below), whose sum is σ = 47896610395920. Its totient is φ = 6631322256000.

The previous prime is 21000004312229. The next prime is 21000004312333. The reversal of 21000004312302 is 20321340000012.

21000004312302 is a `hidden beast` number, since 2 + 1 + 0 + 0 + 0 + 0 + 0 + 431 + 230 + 2 = 666.

It is a super-2 number, since 2×21000004312302² (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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7703802 + ... + 10067202.

It is an arithmetic number, because the mean of its divisors is an integer number (997846049915).

Almost surely, 2^{21000004312302} is an apocalyptic number.

21000004312302 is an abundant number, since it is smaller than the sum of its proper divisors (26896606083618).

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

21000004312302 is a wasteful number, since it uses less digits than its factorization.

21000004312302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2389409 (or 2389406 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21000004312302 its reverse (20321340000012), we get a palindrome (41321344312314).

The spelling of 21000004312302 in words is "twenty-one trillion, four million, three hundred twelve thousand, three hundred two".