21323004102404 has 12 divisors (see below), whose sum is σ = 37663997901264. Its totient is φ = 10561861844904.

The previous prime is 21323004102397. The next prime is 21323004102487. The reversal of 21323004102404 is 40420140032312.

It is a super-2 number, since 2×21323004102404² (a number of 27 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 24910051094 + ... + 24910051949.

It is an arithmetic number, because the mean of its divisors is an integer number (3138666491772).

Almost surely, 2^{21323004102404} is an apocalyptic number.

It is an amenable number.

21323004102404 is a deficient number, since it is larger than the sum of its proper divisors (16340993798860).

21323004102404 is a wasteful number, since it uses less digits than its factorization.

21323004102404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49820103154 (or 49820103152 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 21323004102404 its reverse (40420140032312), we get a palindrome (61743144134716).

The spelling of 21323004102404 in words is "twenty-one trillion, three hundred twenty-three billion, four million, one hundred two thousand, four hundred four".