331135201 has 4 divisors (see below), whose sum is σ = 331434900. Its totient is φ = 330835504.

The previous prime is 331135183. The next prime is 331135219. The reversal of 331135201 is 102531133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102531133 = 227 ⋅451679.

It is an interprime number because it is at equal distance from previous prime (331135183) and next prime (331135219).

It can be written as a sum of positive squares in 2 ways, for example, as 106584976 + 224550225 = 10324^2 + 14985^2 .

It is a cyclic number.

It is not a de Polignac number, because 331135201 - 2⁹ = 331134689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331135241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148186 + ... + 150403.

It is an arithmetic number, because the mean of its divisors is an integer number (82858725).

Almost surely, 2^331135201 is an apocalyptic number.

It is an amenable number.

331135201 is a deficient number, since it is larger than the sum of its proper divisors (299699).

331135201 is a wasteful number, since it uses less digits than its factorization.

331135201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299698.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 331135201 is about 18197.1206788327. The cubic root of 331135201 is about 691.8338120139.

Adding to 331135201 its reverse (102531133), we get a palindrome (433666334).

The spelling of 331135201 in words is "three hundred thirty-one million, one hundred thirty-five thousand, two hundred one".