21732383100 has 36 divisors (see below), whose sum is σ = 62879029304. Its totient is φ = 5795302080.

The previous prime is 21732383081. The next prime is 21732383111. The reversal of 21732383100 is 138323712.

It is a super-2 number, since 2×21732383100² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 36220339 + ... + 36220938.

Almost surely, 2^21732383100 is an apocalyptic number.

21732383100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21732383100 is an abundant number, since it is smaller than the sum of its proper divisors (41146646204).

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

21732383100 is a wasteful number, since it uses less digits than its factorization.

21732383100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72441294 (or 72441287 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The spelling of 21732383100 in words is "twenty-one billion, seven hundred thirty-two million, three hundred eighty-three thousand, one hundred".