31348008277 has 2 divisors, whose sum is σ = 31348008278. Its totient is φ = 31348008276.

The previous prime is 31348008269. The next prime is 31348008299. The reversal of 31348008277 is 77280084313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20311665361 + 11036342916 = 142519^2 + 105054^2 .

It is a cyclic number.

It is not a de Polignac number, because 31348008277 - 2³ = 31348008269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31348008227) by changing a digit.

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 as a sum of consecutive naturals, namely, 15674004138 + 15674004139.

It is an arithmetic number, because the mean of its divisors is an integer number (15674004139).

Almost surely, 2^31348008277 is an apocalyptic number.

It is an amenable number.

31348008277 is a deficient number, since it is larger than the sum of its proper divisors (1).

31348008277 is an equidigital number, since it uses as much as digits as its factorization.

31348008277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225792, while the sum is 43.

The spelling of 31348008277 in words is "thirty-one billion, three hundred forty-eight million, eight thousand, two hundred seventy-seven".