3231312131 has 8 divisors (see below), whose sum is σ = 3322350528. Its totient is φ = 3140856000.

The previous prime is 3231312107. The next prime is 3231312137. The reversal of 3231312131 is 1312131323.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3231312131 - 2¹⁴ = 3231295747 is a prime.

It is a super-2 number, since 2×3231312131² = 20882756175895522322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3231312137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134300 + ... + 156521.

It is an arithmetic number, because the mean of its divisors is an integer number (415293816).

Almost surely, 2^3231312131 is an apocalyptic number.

3231312131 is a deficient number, since it is larger than the sum of its proper divisors (91038397).

3231312131 is a wasteful number, since it uses less digits than its factorization.

3231312131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291133.

The product of its digits is 324, while the sum is 20.

The square root of 3231312131 is about 56844.6315055345. The cubic root of 3231312131 is about 1478.4034602172.

Adding to 3231312131 its reverse (1312131323), we get a palindrome (4543443454).

It can be divided in two parts, 32313 and 12131, that added together give a palindrome (44444).

The spelling of 3231312131 in words is "three billion, two hundred thirty-one million, three hundred twelve thousand, one hundred thirty-one".