12369431 has 4 divisors (see below), whose sum is σ = 12376752. Its totient is φ = 12362112.

The previous prime is 12369367. The next prime is 12369443. The reversal of 12369431 is 13496321.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12369431 - 2⁶ = 12369367 is a prime.

It is a super-2 number, since 2×12369431² = 306005646527522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12369394 and 12369403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12369451) 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, 311 + ... + 4983.

It is an arithmetic number, because the mean of its divisors is an integer number (3094188).

Almost surely, 2^12369431 is an apocalyptic number.

12369431 is a deficient number, since it is larger than the sum of its proper divisors (7321).

12369431 is an equidigital number, since it uses as much as digits as its factorization.

12369431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7320.

The product of its digits is 3888, while the sum is 29.

The square root of 12369431 is about 3517.0201876020. The cubic root of 12369431 is about 231.2685482079.

The spelling of 12369431 in words is "twelve million, three hundred sixty-nine thousand, four hundred thirty-one".