313011331187 has 2 divisors, whose sum is σ = 313011331188. Its totient is φ = 313011331186.

The previous prime is 313011331183. The next prime is 313011331219. The reversal of 313011331187 is 781133110313.

It is an a-pointer prime, because the next prime (313011331219) can be obtained adding 313011331187 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313011331187 - 2² = 313011331183 is a prime.

It is not a weakly prime, because it can be changed into another prime (313011331183) 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, 156505665593 + 156505665594.

It is an arithmetic number, because the mean of its divisors is an integer number (156505665594).

Almost surely, 2^313011331187 is an apocalyptic number.

313011331187 is a deficient number, since it is larger than the sum of its proper divisors (1).

313011331187 is an equidigital number, since it uses as much as digits as its factorization.

313011331187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 32.

The spelling of 313011331187 in words is "three hundred thirteen billion, eleven million, three hundred thirty-one thousand, one hundred eighty-seven".