12322131 has 16 divisors (see below), whose sum is σ = 16892928. Its totient is φ = 7985600.

The previous prime is 12322109. The next prime is 12322169. The reversal of 12322131 is 13122321.

It is a cyclic number.

It is not a de Polignac number, because 12322131 - 2⁶ = 12322067 is a prime.

It is a super-2 number, since 2×12322131² = 303669824762322, 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 12322131.

It is not an unprimeable number, because it can be changed into a prime (12322031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39466 + ... + 39776.

It is an arithmetic number, because the mean of its divisors is an integer number (1055808).

Almost surely, 2^12322131 is an apocalyptic number.

12322131 is a deficient number, since it is larger than the sum of its proper divisors (4570797).

12322131 is a wasteful number, since it uses less digits than its factorization.

12322131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642.

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

The square root of 12322131 is about 3510.2893043167. The cubic root of 12322131 is about 230.9733857384.

Adding to 12322131 its reverse (13122321), we get a palindrome (25444452).

The spelling of 12322131 in words is "twelve million, three hundred twenty-two thousand, one hundred thirty-one".