21233003012100 has 108 divisors (see below), whose sum is σ = 72604001848560. Its totient is φ = 5147394667200.

The previous prime is 21233003012063. The next prime is 21233003012113. The reversal of 21233003012100 is 121030033212.

21233003012100 is a `hidden beast` number, since 2 + 12 + 330 + 0 + 301 + 21 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1072363990 + ... + 1072383789.

Almost surely, 2^{21233003012100} is an apocalyptic number.

21233003012100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21233003012100 is an abundant number, since it is smaller than the sum of its proper divisors (51370998836460).

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

21233003012100 is a wasteful number, since it uses less digits than its factorization.

21233003012100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2144747810 (or 2144747800 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21233003012100 its reverse (121030033212), we get a palindrome (21354033045312).

The spelling of 21233003012100 in words is "twenty-one trillion, two hundred thirty-three billion, three million, twelve thousand, one hundred".