21033300323100 has 144 divisors (see below), whose sum is σ = 67308893670368. Its totient is φ = 5037497256960.

The previous prime is 21033300323083. The next prime is 21033300323129. The reversal of 21033300323100 is 132300333012.

It is a super-2 number, since 2×21033300323100² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 72736159 + ... + 73024758.

Almost surely, 2^{21033300323100} is an apocalyptic number.

21033300323100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21033300323100 is an abundant number, since it is smaller than the sum of its proper divisors (46275593347268).

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

21033300323100 is a wasteful number, since it uses less digits than its factorization.

21033300323100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145760984 (or 145760977 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 21033300323100 its reverse (132300333012), we get a palindrome (21165600656112).

The spelling of 21033300323100 in words is "twenty-one trillion, thirty-three billion, three hundred million, three hundred twenty-three thousand, one hundred".