12232131 has 8 divisors (see below), whose sum is σ = 16346304. Its totient is φ = 8136360.

The previous prime is 12232117. The next prime is 12232141. The reversal of 12232131 is 13123221.

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

It is not a de Polignac number, because 12232131 - 2¹⁸ = 11969987 is a prime.

It is a super-2 number, since 2×12232131² = 299250057602322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12232131.

It is not an unprimeable number, because it can be changed into a prime (12232141) 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, 2965 + ... + 5766.

It is an arithmetic number, because the mean of its divisors is an integer number (2043288).

Almost surely, 2^12232131 is an apocalyptic number.

12232131 is a deficient number, since it is larger than the sum of its proper divisors (4114173).

12232131 is an equidigital number, since it uses as much as digits as its factorization.

12232131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9201.

The product of its digits is 72, while the sum is 15.

The square root of 12232131 is about 3497.4463541275. The cubic root of 12232131 is about 230.4096731387.

Adding to 12232131 its reverse (13123221), we get a palindrome (25355352).

The spelling of 12232131 in words is "twelve million, two hundred thirty-two thousand, one hundred thirty-one".