21083302163 has 16 divisors (see below), whose sum is σ = 26292397824. Its totient is φ = 16424345760.

The previous prime is 21083302133. The next prime is 21083302181. The reversal of 21083302163 is 36120338012.

It is a cyclic number.

It is not a de Polignac number, because 21083302163 - 2²⁸ = 20814866707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21083302103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287156 + ... + 353022.

It is an arithmetic number, because the mean of its divisors is an integer number (1643274864).

Almost surely, 2^21083302163 is an apocalyptic number.

21083302163 is a deficient number, since it is larger than the sum of its proper divisors (5209095661).

21083302163 is a wasteful number, since it uses less digits than its factorization.

21083302163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70042.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 21083302163 in words is "twenty-one billion, eighty-three million, three hundred two thousand, one hundred sixty-three".