21323414024 has 32 divisors (see below), whose sum is σ = 46181728800. Its totient is φ = 9122315520.

The previous prime is 21323414009. The next prime is 21323414053. The reversal of 21323414024 is 42041432312.

It is a junction number, because it is equal to n+sod(n) for n = 21323413984 and 21323414002.

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 7 ways as a sum of consecutive naturals, for example, 7125314 + ... + 7128305.

It is an arithmetic number, because the mean of its divisors is an integer number (1443179025).

Almost surely, 2^21323414024 is an apocalyptic number.

It is an amenable number.

21323414024 is an abundant number, since it is smaller than the sum of its proper divisors (24858314776).

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

21323414024 is a wasteful number, since it uses less digits than its factorization.

21323414024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14253653 (or 14253649 counting only the distinct ones).

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

Adding to 21323414024 its reverse (42041432312), we get a palindrome (63364846336).

The spelling of 21323414024 in words is "twenty-one billion, three hundred twenty-three million, four hundred fourteen thousand, twenty-four".