232131 has 4 divisors (see below), whose sum is σ = 309512. Its totient is φ = 154752.

The previous prime is 232129. The next prime is 232153. The reversal of 232131 is 131232.

It is a happy number.

232131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 232131 - 2¹ = 232129 is a prime.

It is a super-2 number, since 2×232131² = 107769602322, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232171) 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, 38686 + ... + 38691.

It is an arithmetic number, because the mean of its divisors is an integer number (77378).

2²³²¹³¹ is an apocalyptic number.

232131 is a deficient number, since it is larger than the sum of its proper divisors (77381).

232131 is an equidigital number, since it uses as much as digits as its factorization.

232131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77380.

The product of its digits is 36, while the sum is 12.

The square root of 232131 is about 481.7997509339. The cubic root of 232131 is about 61.4578996682.

Adding to 232131 its reverse (131232), we get a palindrome (363363).

It can be divided in two parts, 232 and 131, that added together give a palindrome (363).

The spelling of 232131 in words is "two hundred thirty-two thousand, one hundred thirty-one".