12131244419 has 4 divisors (see below), whose sum is σ = 13864279344. Its totient is φ = 10398209496.

The previous prime is 12131244397. The next prime is 12131244439. The reversal of 12131244419 is 91444213121.

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

It is a cyclic number.

It is not a de Polignac number, because 12131244419 - 2²⁸ = 11862808963 is a prime.

It is a super-2 number, since 2×12131244419² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12131244439) 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, 866517452 + ... + 866517465.

It is an arithmetic number, because the mean of its divisors is an integer number (3466069836).

Almost surely, 2^12131244419 is an apocalyptic number.

12131244419 is a deficient number, since it is larger than the sum of its proper divisors (1733034925).

12131244419 is an equidigital number, since it uses as much as digits as its factorization.

12131244419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733034924.

The product of its digits is 6912, while the sum is 32.

The spelling of 12131244419 in words is "twelve billion, one hundred thirty-one million, two hundred forty-four thousand, four hundred nineteen".