31031342013442 has 16 divisors (see below), whose sum is σ = 46583542793952. Its totient is φ = 15503498189280.

The previous prime is 31031342013317. The next prime is 31031342013461. The reversal of 31031342013442 is 24431024313013.

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, 15561942 + ... + 17442382.

It is an arithmetic number, because the mean of its divisors is an integer number (2911471424622).

Almost surely, 2^{31031342013442} is an apocalyptic number.

31031342013442 is a deficient number, since it is larger than the sum of its proper divisors (15552200780510).

31031342013442 is a wasteful number, since it uses less digits than its factorization.

31031342013442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886913.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 31031342013442 its reverse (24431024313013), we get a palindrome (55462366326455).

The spelling of 31031342013442 in words is "thirty-one trillion, thirty-one billion, three hundred forty-two million, thirteen thousand, four hundred forty-two".