12311343142 has 16 divisors (see below), whose sum is σ = 21619920672. Its totient is φ = 5147599680.

The previous prime is 12311343139. The next prime is 12311343217. The reversal of 12311343142 is 24134311321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10723593 + ... + 10724740.

It is an arithmetic number, because the mean of its divisors is an integer number (1351245042).

Almost surely, 2^12311343142 is an apocalyptic number.

12311343142 is a deficient number, since it is larger than the sum of its proper divisors (9308577530).

12311343142 is a wasteful number, since it uses less digits than its factorization.

12311343142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21448383.

The product of its digits is 1728, while the sum is 25.

Adding to 12311343142 its reverse (24134311321), we get a palindrome (36445654463).

The spelling of 12311343142 in words is "twelve billion, three hundred eleven million, three hundred forty-three thousand, one hundred forty-two".