311231011101047 has 2 divisors, whose sum is σ = 311231011101048. Its totient is φ = 311231011101046.

The previous prime is 311231011101011. The next prime is 311231011101053. The reversal of 311231011101047 is 740101110132113.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311231011101047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311231011101077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155615505550523 + 155615505550524.

It is an arithmetic number, because the mean of its divisors is an integer number (155615505550524).

Almost surely, 2^{311231011101047} is an apocalyptic number.

311231011101047 is a deficient number, since it is larger than the sum of its proper divisors (1).

311231011101047 is an equidigital number, since it uses as much as digits as its factorization.

311231011101047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 26.

The spelling of 311231011101047 in words is "three hundred eleven trillion, two hundred thirty-one billion, eleven million, one hundred one thousand, forty-seven".