12111431342 has 16 divisors (see below), whose sum is σ = 18595008432. Its totient is φ = 5913176640.

The previous prime is 12111431317. The next prime is 12111431357. The reversal of 12111431342 is 24313411121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310178 + ... + 347034.

It is an arithmetic number, because the mean of its divisors is an integer number (1162188027).

Almost surely, 2^12111431342 is an apocalyptic number.

12111431342 is a deficient number, since it is larger than the sum of its proper divisors (6483577090).

12111431342 is a wasteful number, since it uses less digits than its factorization.

12111431342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40723.

The product of its digits is 576, while the sum is 23.

Adding to 12111431342 its reverse (24313411121), we get a palindrome (36424842463).

The spelling of 12111431342 in words is "twelve billion, one hundred eleven million, four hundred thirty-one thousand, three hundred forty-two".