3132331231 has 4 divisors (see below), whose sum is σ = 3175239952. Its totient is φ = 3089422512.

The previous prime is 3132331201. The next prime is 3132331247. The reversal of 3132331231 is 1321332313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3132331231 - 2²³ = 3123942623 is a prime.

It is a super-2 number, since 2×3132331231² = 19622997881395950722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3132331201) 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, 21454251 + ... + 21454396.

It is an arithmetic number, because the mean of its divisors is an integer number (793809988).

Almost surely, 2^3132331231 is an apocalyptic number.

3132331231 is a deficient number, since it is larger than the sum of its proper divisors (42908721).

3132331231 is an equidigital number, since it uses as much as digits as its factorization.

3132331231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42908720.

The product of its digits is 972, while the sum is 22.

The square root of 3132331231 is about 55967.2335478537. The cubic root of 3132331231 is about 1463.1512641936.

Adding to 3132331231 its reverse (1321332313), we get a palindrome (4453663544).

The spelling of 3132331231 in words is "three billion, one hundred thirty-two million, three hundred thirty-one thousand, two hundred thirty-one".