201397311 has 12 divisors (see below), whose sum is σ = 291038280. Its totient is φ = 134204400.

The previous prime is 201397309. The next prime is 201397367. The reversal of 201397311 is 113793102.

It is not a de Polignac number, because 201397311 - 2¹ = 201397309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201397381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26320 + ... + 33098.

It is an arithmetic number, because the mean of its divisors is an integer number (24253190).

Almost surely, 2^201397311 is an apocalyptic number.

201397311 is a deficient number, since it is larger than the sum of its proper divisors (89640969).

201397311 is a wasteful number, since it uses less digits than its factorization.

201397311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10086 (or 10083 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 201397311 is about 14191.4520398725. The cubic root of 201397311 is about 586.1623089015.

The spelling of 201397311 in words is "two hundred one million, three hundred ninety-seven thousand, three hundred eleven".