311055377 has 2 divisors, whose sum is σ = 311055378. Its totient is φ = 311055376.

The previous prime is 311055359. The next prime is 311055383. The reversal of 311055377 is 773550113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 274101136 + 36954241 = 16556^2 + 6079^2 .

It is a cyclic number.

It is not a de Polignac number, because 311055377 - 2¹⁸ = 310793233 is a prime.

It is a super-2 number, since 2×311055377² = 193510895121224258, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (311055347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155527688 + 155527689.

It is an arithmetic number, because the mean of its divisors is an integer number (155527689).

Almost surely, 2^311055377 is an apocalyptic number.

It is an amenable number.

311055377 is a deficient number, since it is larger than the sum of its proper divisors (1).

311055377 is an equidigital number, since it uses as much as digits as its factorization.

311055377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11025, while the sum is 32.

The square root of 311055377 is about 17636.7620894539. The cubic root of 311055377 is about 677.5571059738.

The spelling of 311055377 in words is "three hundred eleven million, fifty-five thousand, three hundred seventy-seven".