313011091 has 2 divisors, whose sum is σ = 313011092. Its totient is φ = 313011090.

The previous prime is 313011053. The next prime is 313011103. The reversal of 313011091 is 190110313.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (190110313) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313011091 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (313011001) 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, 156505545 + 156505546.

It is an arithmetic number, because the mean of its divisors is an integer number (156505546).

Almost surely, 2^313011091 is an apocalyptic number.

313011091 is a deficient number, since it is larger than the sum of its proper divisors (1).

313011091 is an equidigital number, since it uses as much as digits as its factorization.

313011091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81, while the sum is 19.

The square root of 313011091 is about 17692.1194603699. The cubic root of 313011091 is about 678.9741531586.

The spelling of 313011091 in words is "three hundred thirteen million, eleven thousand, ninety-one".