311274241 has 2 divisors, whose sum is σ = 311274242. Its totient is φ = 311274240.

The previous prime is 311274239. The next prime is 311274251. The reversal of 311274241 is 142472113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 310640625 + 633616 = 17625^2 + 796^2 .

It is a cyclic number.

It is not a de Polignac number, because 311274241 - 2¹ = 311274239 is a prime.

It is a super-2 number, since 2×311274241² = 193783306220252162, which contains 22 as substring.

Together with 311274239, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (311274221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155637120 + 155637121.

It is an arithmetic number, because the mean of its divisors is an integer number (155637121).

Almost surely, 2^311274241 is an apocalyptic number.

It is an amenable number.

311274241 is a deficient number, since it is larger than the sum of its proper divisors (1).

311274241 is an equidigital number, since it uses as much as digits as its factorization.

311274241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 25.

The square root of 311274241 is about 17642.9657654262. The cubic root of 311274241 is about 677.7159823910.

The spelling of 311274241 in words is "three hundred eleven million, two hundred seventy-four thousand, two hundred forty-one".