21023133330312 has 96 divisors (see below), whose sum is σ = 57017839394880. Its totient is φ = 6997848923520.

The previous prime is 21023133330299. The next prime is 21023133330337. The reversal of 21023133330312 is 21303333132012.

21023133330312 is a `hidden beast` number, since 2 + 1 + 0 + 2 + 3 + 13 + 3 + 330 + 312 = 666.

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, 148373533 + ... + 148515155.

It is an arithmetic number, because the mean of its divisors is an integer number (593935827030).

Almost surely, 2^{21023133330312} is an apocalyptic number.

It is an amenable number.

21023133330312 is an abundant number, since it is smaller than the sum of its proper divisors (35994706064568).

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

21023133330312 is a wasteful number, since it uses less digits than its factorization.

21023133330312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144523 (or 144516 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 21023133330312 its reverse (21303333132012), we get a palindrome (42326466462324).

The spelling of 21023133330312 in words is "twenty-one trillion, twenty-three billion, one hundred thirty-three million, three hundred thirty thousand, three hundred twelve".