31430140113 has 16 divisors (see below), whose sum is σ = 44745845760. Its totient is φ = 19576303824.

The previous prime is 31430140087. The next prime is 31430140117. The reversal of 31430140113 is 31104103413.

It is not a de Polignac number, because 31430140113 - 2¹⁰ = 31430139089 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31430140113.

It is not an unprimeable number, because it can be changed into a prime (31430140117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5293653 + ... + 5299586.

It is an arithmetic number, because the mean of its divisors is an integer number (2796615360).

Almost surely, 2^31430140113 is an apocalyptic number.

It is an amenable number.

31430140113 is a deficient number, since it is larger than the sum of its proper divisors (13315705647).

31430140113 is a wasteful number, since it uses less digits than its factorization.

31430140113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10593308.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31430140113 its reverse (31104103413), we get a palindrome (62534243526).

The spelling of 31430140113 in words is "thirty-one billion, four hundred thirty million, one hundred forty thousand, one hundred thirteen".