12131383 has 4 divisors (see below), whose sum is σ = 13234248. Its totient is φ = 11028520.

The previous prime is 12131377. The next prime is 12131389. The reversal of 12131383 is 38313121.

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

It is an interprime number because it is at equal distance from previous prime (12131377) and next prime (12131389).

It is a cyclic number.

It is not a de Polignac number, because 12131383 - 2²¹ = 10034231 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131389) 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 3 ways as a sum of consecutive naturals, for example, 551416 + ... + 551437.

It is an arithmetic number, because the mean of its divisors is an integer number (3308562).

Almost surely, 2^12131383 is an apocalyptic number.

12131383 is a deficient number, since it is larger than the sum of its proper divisors (1102865).

12131383 is a wasteful number, since it uses less digits than its factorization.

12131383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102864.

The product of its digits is 432, while the sum is 22.

The square root of 12131383 is about 3483.0134940881. The cubic root of 12131383 is about 229.7753509071.

The spelling of 12131383 in words is "twelve million, one hundred thirty-one thousand, three hundred eighty-three".