318854812291 has 2 divisors, whose sum is σ = 318854812292. Its totient is φ = 318854812290.

The previous prime is 318854812231. The next prime is 318854812337. The reversal of 318854812291 is 192218458813.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 318854812291 - 2¹¹ = 318854810243 is a prime.

It is a super-2 number, since 2×318854812291² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (318854812201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159427406145 + 159427406146.

It is an arithmetic number, because the mean of its divisors is an integer number (159427406146).

Almost surely, 2^318854812291 is an apocalyptic number.

318854812291 is a deficient number, since it is larger than the sum of its proper divisors (1).

318854812291 is an equidigital number, since it uses as much as digits as its factorization.

318854812291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1105920, while the sum is 52.

The spelling of 318854812291 in words is "three hundred eighteen billion, eight hundred fifty-four million, eight hundred twelve thousand, two hundred ninety-one".