31348211707 has 4 divisors (see below), whose sum is σ = 31464748080. Its totient is φ = 31231675336.

The previous prime is 31348211681. The next prime is 31348211731. The reversal of 31348211707 is 70711284313.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31348211707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31348211737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58267783 + ... + 58268320.

It is an arithmetic number, because the mean of its divisors is an integer number (7866187020).

Almost surely, 2^31348211707 is an apocalyptic number.

31348211707 is a deficient number, since it is larger than the sum of its proper divisors (116536373).

31348211707 is a wasteful number, since it uses less digits than its factorization.

31348211707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116536372.

The product of its (nonzero) digits is 28224, while the sum is 37.

The spelling of 31348211707 in words is "thirty-one billion, three hundred forty-eight million, two hundred eleven thousand, seven hundred seven".