21301312333312 has 40 divisors (see below), whose sum is σ = 46430204238792. Its totient is φ = 9682414694400.

The previous prime is 21301312333271. The next prime is 21301312333331. The reversal of 21301312333312 is 21333321310312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1891090989 + ... + 1891102252.

Almost surely, 2^{21301312333312} is an apocalyptic number.

21301312333312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21301312333312 is an abundant number, since it is smaller than the sum of its proper divisors (25128891905480).

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

21301312333312 is an equidigital number, since it uses as much as digits as its factorization.

21301312333312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3782193270 (or 3782193254 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 21301312333312 its reverse (21333321310312), we get a palindrome (42634633643624).

The spelling of 21301312333312 in words is "twenty-one trillion, three hundred one billion, three hundred twelve million, three hundred thirty-three thousand, three hundred twelve".