12344243131 has 8 divisors (see below), whose sum is σ = 13472999424. Its totient is φ = 11216578920.

The previous prime is 12344243123. The next prime is 12344243237. The reversal of 12344243131 is 13134244321.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12344243131 - 2³ = 12344243123 is a prime.

It is a super-2 number, since 2×12344243131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12344243131.

It is not an unprimeable number, because it can be changed into a prime (12344243831) 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, 249291 + ... + 294676.

It is an arithmetic number, because the mean of its divisors is an integer number (1684124928).

Almost surely, 2^12344243131 is an apocalyptic number.

12344243131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12344243131 is a deficient number, since it is larger than the sum of its proper divisors (1128756293).

12344243131 is a wasteful number, since it uses less digits than its factorization.

12344243131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546041.

The product of its digits is 6912, while the sum is 28.

Adding to 12344243131 its reverse (13134244321), we get a palindrome (25478487452).

The spelling of 12344243131 in words is "twelve billion, three hundred forty-four million, two hundred forty-three thousand, one hundred thirty-one".