311121113077 has 2 divisors, whose sum is σ = 311121113078. Its totient is φ = 311121113076.

The previous prime is 311121113057. The next prime is 311121113087. The reversal of 311121113077 is 770311121113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 272109332881 + 39011780196 = 521641^2 + 197514^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311121113077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311121113057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155560556538 + 155560556539.

It is an arithmetic number, because the mean of its divisors is an integer number (155560556539).

Almost surely, 2^311121113077 is an apocalyptic number.

It is an amenable number.

311121113077 is a deficient number, since it is larger than the sum of its proper divisors (1).

311121113077 is an equidigital number, since it uses as much as digits as its factorization.

311121113077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 882, while the sum is 28.

The spelling of 311121113077 in words is "three hundred eleven billion, one hundred twenty-one million, one hundred thirteen thousand, seventy-seven".