3201311231 has 4 divisors (see below), whose sum is σ = 3201424464. Its totient is φ = 3201198000.

The previous prime is 3201311227. The next prime is 3201311237. The reversal of 3201311231 is 1321131023.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3201311231 - 2² = 3201311227 is a prime.

It is a super-3 number, since 3×3201311231³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201311237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25286 + ... + 83916.

It is an arithmetic number, because the mean of its divisors is an integer number (800356116).

Almost surely, 2^3201311231 is an apocalyptic number.

3201311231 is a deficient number, since it is larger than the sum of its proper divisors (113233).

3201311231 is an equidigital number, since it uses as much as digits as its factorization.

3201311231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113232.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 3201311231 is about 56580.1310620610. The cubic root of 3201311231 is about 1473.8138476503.

Adding to 3201311231 its reverse (1321131023), we get a palindrome (4522442254).

It can be divided in two parts, 3201 and 311231, that added together give a cube (314432 = 68³).

The spelling of 3201311231 in words is "three billion, two hundred one million, three hundred eleven thousand, two hundred thirty-one".