311212111159 has 2 divisors, whose sum is σ = 311212111160. Its totient is φ = 311212111158.

The previous prime is 311212111123. The next prime is 311212111213. The reversal of 311212111159 is 951111212113.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (951111212113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 311212111159 - 2⁷ = 311212111031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311212111459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155606055579 + 155606055580.

It is an arithmetic number, because the mean of its divisors is an integer number (155606055580).

Almost surely, 2^311212111159 is an apocalyptic number.

311212111159 is a deficient number, since it is larger than the sum of its proper divisors (1).

311212111159 is an equidigital number, since it uses as much as digits as its factorization.

311212111159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 540, while the sum is 28.

The spelling of 311212111159 in words is "three hundred eleven billion, two hundred twelve million, one hundred eleven thousand, one hundred fifty-nine".