31340634277 has 2 divisors, whose sum is σ = 31340634278. Its totient is φ = 31340634276.

The previous prime is 31340634217. The next prime is 31340634317. The reversal of 31340634277 is 77243604313.

It is an a-pointer prime, because the next prime (31340634317) can be obtained adding 31340634277 to its sum of digits (40).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26694984996 + 4645649281 = 163386^2 + 68159^2 .

It is a cyclic number.

It is not a de Polignac number, because 31340634277 - 2¹⁹ = 31340109989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31340634217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15670317138 + 15670317139.

It is an arithmetic number, because the mean of its divisors is an integer number (15670317139).

Almost surely, 2^31340634277 is an apocalyptic number.

It is an amenable number.

31340634277 is a deficient number, since it is larger than the sum of its proper divisors (1).

31340634277 is an equidigital number, since it uses as much as digits as its factorization.

31340634277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 40.

The spelling of 31340634277 in words is "thirty-one billion, three hundred forty million, six hundred thirty-four thousand, two hundred seventy-seven".