21314087100 has 54 divisors (see below), whose sum is σ = 66807824720. Its totient is φ = 5683756320.

The previous prime is 21314087077. The next prime is 21314087149. The reversal of 21314087100 is 178041312.

It is a congruent number.

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 17 ways as a sum of consecutive naturals, for example, 11840260 + ... + 11842059.

Almost surely, 2^21314087100 is an apocalyptic number.

21314087100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21314087100 is an abundant number, since it is smaller than the sum of its proper divisors (45493737620).

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

21314087100 is a wasteful number, since it uses less digits than its factorization.

21314087100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23682339 (or 23682329 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The spelling of 21314087100 in words is "twenty-one billion, three hundred fourteen million, eighty-seven thousand, one hundred".