21200031296 has 28 divisors (see below), whose sum is σ = 42076250112. Its totient is φ = 10598141568.

The previous prime is 21200031289. The next prime is 21200031301. The reversal of 21200031296 is 69213000212.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 379841 + ... + 432063.

Almost surely, 2^21200031296 is an apocalyptic number.

It is an amenable number.

21200031296 is a deficient number, since it is larger than the sum of its proper divisors (20876218816).

21200031296 is an equidigital number, since it uses as much as digits as its factorization.

21200031296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58578 (or 58568 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 21200031296 in words is "twenty-one billion, two hundred million, thirty-one thousand, two hundred ninety-six".