3201312231 has 12 divisors (see below), whose sum is σ = 4979819208. Its totient is φ = 1970038224.

The previous prime is 3201312229. The next prime is 3201312239. The reversal of 3201312231 is 1322131023.

3201312231 is a `hidden beast` number, since 320 + 1 + 312 + 2 + 31 = 666.

It is not a de Polignac number, because 3201312231 - 2¹ = 3201312229 is a prime.

It is a super-2 number, since 2×3201312231² = 20496800000700394722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201312239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13680705 + ... + 13680938.

It is an arithmetic number, because the mean of its divisors is an integer number (414984934).

Almost surely, 2^3201312231 is an apocalyptic number.

3201312231 is a deficient number, since it is larger than the sum of its proper divisors (1778506977).

3201312231 is a wasteful number, since it uses less digits than its factorization.

3201312231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27361662 (or 27361659 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3201312231 is about 56580.1398990847. The cubic root of 3201312231 is about 1473.8140011097.

Adding to 3201312231 its reverse (1322131023), we get a palindrome (4523443254).

It can be divided in two parts, 32013 and 12231, that added together give a palindrome (44244).

The spelling of 3201312231 in words is "three billion, two hundred one million, three hundred twelve thousand, two hundred thirty-one".