3201311331 has 6 divisors (see below), whose sum is σ = 4624116380. Its totient is φ = 2134207548.

The previous prime is 3201311263. The next prime is 3201311369. The reversal of 3201311331 is 1331131023.

It is a happy number.

3201311331 is a `hidden beast` number, since 3 + 20 + 1 + 311 + 331 = 666.

It is not a de Polignac number, because 3201311331 - 2⁷ = 3201311203 is a prime.

It is a super-2 number, since 2×3201311331² = 20496788475977983122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3201311371) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 177850621 + ... + 177850638.

Almost surely, 2^3201311331 is an apocalyptic number.

3201311331 is a deficient number, since it is larger than the sum of its proper divisors (1422805049).

3201311331 is a wasteful number, since it uses less digits than its factorization.

3201311331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355701265 (or 355701262 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 3201311331 is about 56580.1319457634. The cubic root of 3201311331 is about 1473.8138629962.

Adding to 3201311331 its reverse (1331131023), we get a palindrome (4532442354).

The spelling of 3201311331 in words is "three billion, two hundred one million, three hundred eleven thousand, three hundred thirty-one".