21302031333312 has 168 divisors, whose sum is σ = 65031198874096. Its totient is φ = 6908766732288.

The previous prime is 21302031333301. The next prime is 21302031333353. The reversal of 21302031333312 is 21333313020312.

21302031333312 is a `hidden beast` number, since 2 + 1 + 3 + 0 + 2 + 0 + 313 + 33 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 17934433 + ... + 19085280.

Almost surely, 2^{21302031333312} is an apocalyptic number.

It is an amenable number.

21302031333312 is an abundant number, since it is smaller than the sum of its proper divisors (43729167540784).

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

21302031333312 is an equidigital number, since it uses as much as digits as its factorization.

21302031333312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37019777 (or 37019755 counting only the distinct ones).

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

Adding to 21302031333312 its reverse (21333313020312), we get a palindrome (42635344353624).

The spelling of 21302031333312 in words is "twenty-one trillion, three hundred two billion, thirty-one million, three hundred thirty-three thousand, three hundred twelve".