21321233013000 has 128 divisors (see below), whose sum is σ = 69414518833920. Its totient is φ = 5438459417600.

The previous prime is 21321233012971. The next prime is 21321233013037. The reversal of 21321233013000 is 31033212312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154432689 + ... + 154570688.

It is an arithmetic number, because the mean of its divisors is an integer number (542300928390).

Almost surely, 2^{21321233013000} is an apocalyptic number.

21321233013000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21321233013000 is an abundant number, since it is smaller than the sum of its proper divisors (48093285820920).

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

21321233013000 is a wasteful number, since it uses less digits than its factorization.

21321233013000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309003424 (or 309003410 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21321233013000 its reverse (31033212312), we get a palindrome (21352266225312).

The spelling of 21321233013000 in words is "twenty-one trillion, three hundred twenty-one billion, two hundred thirty-three million, thirteen thousand".