31279130707 has 16 divisors (see below), whose sum is σ = 35899696224. Its totient is φ = 26992224000.

The previous prime is 31279130587. The next prime is 31279130759. The reversal of 31279130707 is 70703197213.

It is a cyclic number.

It is not a de Polignac number, because 31279130707 - 2¹¹ = 31279128659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31279130707.

It is not an unprimeable number, because it can be changed into a prime (31279139707) 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, 920544 + ... + 953917.

It is an arithmetic number, because the mean of its divisors is an integer number (2243731014).

Almost surely, 2^31279130707 is an apocalyptic number.

31279130707 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

31279130707 is a deficient number, since it is larger than the sum of its proper divisors (4620565517).

31279130707 is a wasteful number, since it uses less digits than its factorization.

31279130707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874550.

The product of its (nonzero) digits is 55566, while the sum is 40.

The spelling of 31279130707 in words is "thirty-one billion, two hundred seventy-nine million, one hundred thirty thousand, seven hundred seven".