131440042342 has 32 divisors (see below), whose sum is σ = 228881894400. Its totient is φ = 55445076960.

The previous prime is 131440042339. The next prime is 131440042361. The reversal of 131440042342 is 243240044131.

It is a self number, because there is not a number n which added to its sum of digits gives 131440042342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 485028 + ... + 705784.

It is an arithmetic number, because the mean of its divisors is an integer number (7152559200).

Almost surely, 2^131440042342 is an apocalyptic number.

131440042342 is a deficient number, since it is larger than the sum of its proper divisors (97441852058).

131440042342 is a wasteful number, since it uses less digits than its factorization.

131440042342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221436.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 131440042342 its reverse (243240044131), we get a palindrome (374680086473).

The spelling of 131440042342 in words is "one hundred thirty-one billion, four hundred forty million, forty-two thousand, three hundred forty-two".