12431312219 has 2 divisors, whose sum is σ = 12431312220. Its totient is φ = 12431312218.

The previous prime is 12431312209. The next prime is 12431312287. The reversal of 12431312219 is 91221313421.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12431312219 is a prime.

It is a super-2 number, since 2×12431312219² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12431312191 and 12431312200.

It is not a weakly prime, because it can be changed into another prime (12431312209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6215656109 + 6215656110.

It is an arithmetic number, because the mean of its divisors is an integer number (6215656110).

Almost surely, 2^12431312219 is an apocalyptic number.

12431312219 is a deficient number, since it is larger than the sum of its proper divisors (1).

12431312219 is an equidigital number, since it uses as much as digits as its factorization.

12431312219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 29.

The spelling of 12431312219 in words is "twelve billion, four hundred thirty-one million, three hundred twelve thousand, two hundred nineteen".