31130100277 has 2 divisors, whose sum is σ = 31130100278. Its totient is φ = 31130100276.

The previous prime is 31130100167. The next prime is 31130100301. The reversal of 31130100277 is 77200103113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19464156196 + 11665944081 = 139514^2 + 108009^2 .

It is a cyclic number.

It is not a de Polignac number, because 31130100277 - 2¹¹ = 31130098229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31130100377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15565050138 + 15565050139.

It is an arithmetic number, because the mean of its divisors is an integer number (15565050139).

Almost surely, 2^31130100277 is an apocalyptic number.

It is an amenable number.

31130100277 is a deficient number, since it is larger than the sum of its proper divisors (1).

31130100277 is an equidigital number, since it uses as much as digits as its factorization.

31130100277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 882, while the sum is 25.

The spelling of 31130100277 in words is "thirty-one billion, one hundred thirty million, one hundred thousand, two hundred seventy-seven".