21023302001100 has 144 divisors (see below), whose sum is σ = 70656676183296. Its totient is φ = 4726550304000.

The previous prime is 21023302001033. The next prime is 21023302001123. The reversal of 21023302001100 is 110020332012.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 21023302001100.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 81930066 + ... + 82186265.

It is an arithmetic number, because the mean of its divisors is an integer number (490671362384).

Almost surely, 2^{21023302001100} is an apocalyptic number.

21023302001100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21023302001100 is an abundant number, since it is smaller than the sum of its proper divisors (49633374182196).

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

21023302001100 is a wasteful number, since it uses less digits than its factorization.

21023302001100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164116416 (or 164116409 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21023302001100 its reverse (110020332012), we get a palindrome (21133322333112).

The spelling of 21023302001100 in words is "twenty-one trillion, twenty-three billion, three hundred two million, one thousand, one hundred".