31118008927 has 2 divisors, whose sum is σ = 31118008928. Its totient is φ = 31118008926.

The previous prime is 31118008897. The next prime is 31118008931. The reversal of 31118008927 is 72980081113.

It is a strong prime.

It is an emirp because it is prime and its reverse (72980081113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31118008927 - 2⁷ = 31118008799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31118008927.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31118003927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15559004463 + 15559004464.

It is an arithmetic number, because the mean of its divisors is an integer number (15559004464).

Almost surely, 2^31118008927 is an apocalyptic number.

31118008927 is a deficient number, since it is larger than the sum of its proper divisors (1).

31118008927 is an equidigital number, since it uses as much as digits as its factorization.

31118008927 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 40.

The spelling of 31118008927 in words is "thirty-one billion, one hundred eighteen million, eight thousand, nine hundred twenty-seven".