201320992 has 24 divisors (see below), whose sum is σ = 396881100. Its totient is φ = 100525824.

The previous prime is 201320989. The next prime is 201321007. The reversal of 201320992 is 299023102.

It can be written as a sum of positive squares in 2 ways, for example, as 183982096 + 17338896 = 13564^2 + 4164^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 201320992.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22734 + ... + 30322.

Almost surely, 2^201320992 is an apocalyptic number.

It is an amenable number.

201320992 is a deficient number, since it is larger than the sum of its proper divisors (195560108).

201320992 is an equidigital number, since it uses as much as digits as its factorization.

201320992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8428 (or 8420 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 201320992 is about 14188.7628777142. The cubic root of 201320992 is about 586.0882579737.

It can be divided in two parts, 2013 and 20992, that added together give a triangular number (23005 = T₂₁₄).

The spelling of 201320992 in words is "two hundred one million, three hundred twenty thousand, nine hundred ninety-two".