31430130042 has 16 divisors (see below), whose sum is σ = 62861998752. Its totient is φ = 10476420240.

The previous prime is 31430129999. The next prime is 31430130059. The reversal of 31430130042 is 24003103413.

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, 378117 + ... + 453687.

It is an arithmetic number, because the mean of its divisors is an integer number (3928874922).

Almost surely, 2^31430130042 is an apocalyptic number.

31430130042 is an abundant number, since it is smaller than the sum of its proper divisors (31431868710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31430130042 is a wasteful number, since it uses less digits than its factorization.

31430130042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144893.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 31430130042 its reverse (24003103413), we get a palindrome (55433233455).

The spelling of 31430130042 in words is "thirty-one billion, four hundred thirty million, one hundred thirty thousand, forty-two".