31120132279 has 2 divisors, whose sum is σ = 31120132280. Its totient is φ = 31120132278.

The previous prime is 31120132273. The next prime is 31120132331. The reversal of 31120132279 is 97223102113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31120132279 - 2⁷ = 31120132151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31120132279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31120132273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15560066139 + 15560066140.

It is an arithmetic number, because the mean of its divisors is an integer number (15560066140).

Almost surely, 2^31120132279 is an apocalyptic number.

31120132279 is a deficient number, since it is larger than the sum of its proper divisors (1).

31120132279 is an equidigital number, since it uses as much as digits as its factorization.

31120132279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The spelling of 31120132279 in words is "thirty-one billion, one hundred twenty million, one hundred thirty-two thousand, two hundred seventy-nine".