21100231011000 has 64 divisors (see below), whose sum is σ = 65832720763680. Its totient is φ = 5626728268800.

The previous prime is 21100231010983. The next prime is 21100231011011. The reversal of 21100231011000 is 11013200112.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3516702169 + ... + 3516708168.

Almost surely, 2^{21100231011000} is an apocalyptic number.

21100231011000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21100231011000 is an abundant number, since it is smaller than the sum of its proper divisors (44732489752680).

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

21100231011000 is a wasteful number, since it uses less digits than its factorization.

21100231011000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7033410361 (or 7033410347 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 21100231011000 its reverse (11013200112), we get a palindrome (21111244211112).

The spelling of 21100231011000 in words is "twenty-one trillion, one hundred billion, two hundred thirty-one million, eleven thousand".