12431330439 has 8 divisors (see below), whose sum is σ = 18081935232. Its totient is φ = 7534139640.

The previous prime is 12431330383. The next prime is 12431330441. The reversal of 12431330439 is 93403313421.

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

It is not a de Polignac number, because 12431330439 - 2¹¹ = 12431328391 is a prime.

It is a super-3 number, since 3×12431330439³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 376706983 = 12431330439 / (1 + 2 + 4 + 3 + 1 + 3 + 3 + 0 + 4 + 3 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12431330479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188353459 + ... + 188353524.

It is an arithmetic number, because the mean of its divisors is an integer number (2260241904).

Almost surely, 2^12431330439 is an apocalyptic number.

12431330439 is a deficient number, since it is larger than the sum of its proper divisors (5650604793).

12431330439 is a wasteful number, since it uses less digits than its factorization.

12431330439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376706997.

The product of its (nonzero) digits is 23328, while the sum is 33.

The spelling of 12431330439 in words is "twelve billion, four hundred thirty-one million, three hundred thirty thousand, four hundred thirty-nine".