31142332142 has 16 divisors (see below), whose sum is σ = 47587687920. Its totient is φ = 15280685568.

The previous prime is 31142332093. The next prime is 31142332159. The reversal of 31142332142 is 24123324113.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160613 + ... + 296784.

It is an arithmetic number, because the mean of its divisors is an integer number (2974230495).

Almost surely, 2^31142332142 is an apocalyptic number.

31142332142 is a deficient number, since it is larger than the sum of its proper divisors (16445355778).

31142332142 is a wasteful number, since it uses less digits than its factorization.

31142332142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458035.

The product of its digits is 3456, while the sum is 26.

Adding to 31142332142 its reverse (24123324113), we get a palindrome (55265656255).

The spelling of 31142332142 in words is "thirty-one billion, one hundred forty-two million, three hundred thirty-two thousand, one hundred forty-two".