311311111277 has 2 divisors, whose sum is σ = 311311111278. Its totient is φ = 311311111276.

The previous prime is 311311111273. The next prime is 311311111367. The reversal of 311311111277 is 772111113113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 282881441956 + 28429669321 = 531866^2 + 168611^2 .

It is a cyclic number.

It is not a de Polignac number, because 311311111277 - 2² = 311311111273 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311311111273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155655555638 + 155655555639.

It is an arithmetic number, because the mean of its divisors is an integer number (155655555639).

Almost surely, 2^311311111277 is an apocalyptic number.

It is an amenable number.

311311111277 is a deficient number, since it is larger than the sum of its proper divisors (1).

311311111277 is an equidigital number, since it uses as much as digits as its factorization.

311311111277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 882, while the sum is 29.

The spelling of 311311111277 in words is "three hundred eleven billion, three hundred eleven million, one hundred eleven thousand, two hundred seventy-seven".