21104370000 has 600 divisors, whose sum is σ = 85307942720. Its totient is φ = 4769280000.

The previous prime is 21104369989. The next prime is 21104370031. The reversal of 21104370000 is 7340112.

It is a tau number, because it is divible by the number of its divisors (600).

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 119 ways as a sum of consecutive naturals, for example, 87569880 + ... + 87570120.

Almost surely, 2^21104370000 is an apocalyptic number.

21104370000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21104370000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42653971360).

21104370000 is an abundant number, since it is smaller than the sum of its proper divisors (64203572720).

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

21104370000 is a wasteful number, since it uses less digits than its factorization.

21104370000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421 (or 397 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The spelling of 21104370000 in words is "twenty-one billion, one hundred four million, three hundred seventy thousand".