318112811 has 2 divisors, whose sum is σ = 318112812. Its totient is φ = 318112810.

The previous prime is 318112799. The next prime is 318112841. The reversal of 318112811 is 118211813.

It is a weak prime.

It is an emirp because it is prime and its reverse (118211813) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 318112811 - 2²⁶ = 251003947 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (318112841) 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, 159056405 + 159056406.

It is an arithmetic number, because the mean of its divisors is an integer number (159056406).

Almost surely, 2^318112811 is an apocalyptic number.

318112811 is a deficient number, since it is larger than the sum of its proper divisors (1).

318112811 is an equidigital number, since it uses as much as digits as its factorization.

318112811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 26.

The square root of 318112811 is about 17835.7172830251. The cubic root of 318112811 is about 682.6431234771.

The spelling of 318112811 in words is "three hundred eighteen million, one hundred twelve thousand, eight hundred eleven".