21314230400 has 96 divisors (see below), whose sum is σ = 55424168400. Its totient is φ = 8076948480.

The previous prime is 21314230391. The next prime is 21314230417. The reversal of 21314230400 is 403241312.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114482 + ... + 236081.

Almost surely, 2^21314230400 is an apocalyptic number.

21314230400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21314230400 is an abundant number, since it is smaller than the sum of its proper divisors (34109938000).

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

21314230400 is a wasteful number, since it uses less digits than its factorization.

21314230400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350606 (or 350589 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21314230400 its reverse (403241312), we get a palindrome (21717471712).

The spelling of 21314230400 in words is "twenty-one billion, three hundred fourteen million, two hundred thirty thousand, four hundred".