201320389 has 2 divisors, whose sum is σ = 201320390. Its totient is φ = 201320388.

The previous prime is 201320381. The next prime is 201320437. The reversal of 201320389 is 983023102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124144164 + 77176225 = 11142^2 + 8785^2 .

It is a cyclic number.

It is not a de Polignac number, because 201320389 - 2³ = 201320381 is a prime.

It is a super-2 number, since 2×201320389² = 81059798054222642, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201320381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100660194 + 100660195.

It is an arithmetic number, because the mean of its divisors is an integer number (100660195).

Almost surely, 2^201320389 is an apocalyptic number.

It is an amenable number.

201320389 is a deficient number, since it is larger than the sum of its proper divisors (1).

201320389 is an equidigital number, since it uses as much as digits as its factorization.

201320389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 201320389 is about 14188.7416284884. The cubic root of 201320389 is about 586.0876728193.

The spelling of 201320389 in words is "two hundred one million, three hundred twenty thousand, three hundred eighty-nine".