21032312299 has 16 divisors (see below), whose sum is σ = 21402589824. Its totient is φ = 20665180800.

The previous prime is 21032312281. The next prime is 21032312309. The reversal of 21032312299 is 99221323012.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21032312299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21032312239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16290844 + ... + 16292134.

It is an arithmetic number, because the mean of its divisors is an integer number (1337661864).

Almost surely, 2^21032312299 is an apocalyptic number.

21032312299 is a deficient number, since it is larger than the sum of its proper divisors (370277525).

21032312299 is a wasteful number, since it uses less digits than its factorization.

21032312299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2298.

The product of its (nonzero) digits is 11664, while the sum is 34.

The spelling of 21032312299 in words is "twenty-one billion, thirty-two million, three hundred twelve thousand, two hundred ninety-nine".