21100123010300 has 36 divisors (see below), whose sum is σ = 46136788082616. Its totient is φ = 8375621342400.

The previous prime is 21100123010261. The next prime is 21100123010413. The reversal of 21100123010300 is 301032100112.

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, 805335107 + ... + 805361306.

Almost surely, 2^{21100123010300} is an apocalyptic number.

21100123010300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21100123010300 is an abundant number, since it is smaller than the sum of its proper divisors (25036665072316).

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

21100123010300 is a wasteful number, since it uses less digits than its factorization.

21100123010300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610696558 (or 1610696551 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 21100123010300 its reverse (301032100112), we get a palindrome (21401155110412).

The spelling of 21100123010300 in words is "twenty-one trillion, one hundred billion, one hundred twenty-three million, ten thousand, three hundred".