311241377 has 2 divisors, whose sum is σ = 311241378. Its totient is φ = 311241376.

The previous prime is 311241361. The next prime is 311241391. The reversal of 311241377 is 773142113.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197093521 + 114147856 = 14039^2 + 10684^2 .

It is an emirp because it is prime and its reverse (773142113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 311241377 - 2⁴ = 311241361 is a prime.

It is a super-2 number, since 2×311241377² = 193742389513712258, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (311241677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155620688 + 155620689.

It is an arithmetic number, because the mean of its divisors is an integer number (155620689).

Almost surely, 2^311241377 is an apocalyptic number.

It is an amenable number.

311241377 is a deficient number, since it is larger than the sum of its proper divisors (1).

311241377 is an equidigital number, since it uses as much as digits as its factorization.

311241377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3528, while the sum is 29.

The square root of 311241377 is about 17642.0343781549. The cubic root of 311241377 is about 677.6921307098.

The spelling of 311241377 in words is "three hundred eleven million, two hundred forty-one thousand, three hundred seventy-seven".