21322323101100 has 72 divisors (see below), whose sum is σ = 70505815061248. Its totient is φ = 4873673851200.

The previous prime is 21322323101081. The next prime is 21322323101117. The reversal of 21322323101100 is 110132322312.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 5076741496 + ... + 5076745695.

Almost surely, 2^{21322323101100} is an apocalyptic number.

21322323101100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21322323101100 is an abundant number, since it is smaller than the sum of its proper divisors (49183491960148).

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

21322323101100 is a wasteful number, since it uses less digits than its factorization.

21322323101100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10153487215 (or 10153487208 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21322323101100 its reverse (110132322312), we get a palindrome (21432455423412).

The spelling of 21322323101100 in words is "twenty-one trillion, three hundred twenty-two billion, three hundred twenty-three million, one hundred one thousand, one hundred".