21033202320312 has 128 divisors (see below), whose sum is σ = 66466668710400. Its totient is φ = 5397293357568.

The previous prime is 21033202320259. The next prime is 21033202320313. The reversal of 21033202320312 is 21302320233012.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21033202320313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130062262 + ... + 130223877.

It is an arithmetic number, because the mean of its divisors is an integer number (519270849300).

Almost surely, 2^{21033202320312} is an apocalyptic number.

It is an amenable number.

21033202320312 is an abundant number, since it is smaller than the sum of its proper divisors (45433466390088).

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

21033202320312 is a wasteful number, since it uses less digits than its factorization.

21033202320312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260286205 (or 260286201 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 21033202320312 its reverse (21302320233012), we get a palindrome (42335522553324).

The spelling of 21033202320312 in words is "twenty-one trillion, thirty-three billion, two hundred two million, three hundred twenty thousand, three hundred twelve".