21230326404108 has 72 divisors (see below), whose sum is σ = 54444100838400. Its totient is φ = 6974192221920.

The previous prime is 21230326404083. The next prime is 21230326404139. The reversal of 21230326404108 is 80140462303212.

21230326404108 is a `hidden beast` number, since 2 + 1 + 2 + 3 + 0 + 3 + 2 + 640 + 4 + 1 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4400691 + ... + 7862997.

It is an arithmetic number, because the mean of its divisors is an integer number (756168067200).

Almost surely, 2^{21230326404108} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21230326404108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27222050419200).

21230326404108 is an abundant number, since it is smaller than the sum of its proper divisors (33213774434292).

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

21230326404108 is a wasteful number, since it uses less digits than its factorization.

21230326404108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3464787 (or 3464782 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The spelling of 21230326404108 in words is "twenty-one trillion, two hundred thirty billion, three hundred twenty-six million, four hundred four thousand, one hundred eight".