21133020330324 has 72 divisors (see below), whose sum is σ = 61059480693120. Its totient is φ = 6037161878592.

The previous prime is 21133020330319. The next prime is 21133020330341. The reversal of 21133020330324 is 42303302033112.

21133020330324 is a `hidden beast` number, since 2 + 1 + 1 + 3 + 3 + 0 + 2 + 0 + 330 + 324 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4052979 + ... + 7661114.

It is an arithmetic number, because the mean of its divisors is an integer number (848048342960).

Almost surely, 2^{21133020330324} is an apocalyptic number.

It is an amenable number.

21133020330324 is an abundant number, since it is smaller than the sum of its proper divisors (39926460362796).

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

21133020330324 is a wasteful number, since it uses less digits than its factorization.

21133020330324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11721269 (or 11721264 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 21133020330324 its reverse (42303302033112), we get a palindrome (63436322363436).

The spelling of 21133020330324 in words is "twenty-one trillion, one hundred thirty-three billion, twenty million, three hundred thirty thousand, three hundred twenty-four".