311113121279 has 2 divisors, whose sum is σ = 311113121280. Its totient is φ = 311113121278.

The previous prime is 311113121273. The next prime is 311113121303. The reversal of 311113121279 is 972121311113.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311113121279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311113121273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155556560639 + 155556560640.

It is an arithmetic number, because the mean of its divisors is an integer number (155556560640).

Almost surely, 2^311113121279 is an apocalyptic number.

311113121279 is a deficient number, since it is larger than the sum of its proper divisors (1).

311113121279 is an equidigital number, since it uses as much as digits as its factorization.

311113121279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 32.

The spelling of 311113121279 in words is "three hundred eleven billion, one hundred thirteen million, one hundred twenty-one thousand, two hundred seventy-nine".