311441034120509 has 2 divisors, whose sum is σ = 311441034120510. Its totient is φ = 311441034120508.

The previous prime is 311441034120371. The next prime is 311441034120521. The reversal of 311441034120509 is 905021430144113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 301039086828484 + 10401947292025 = 17350478^2 + 3225205^2 .

It is a cyclic number.

It is not a de Polignac number, because 311441034120509 - 2¹² = 311441034116413 is a prime.

It is a super-2 number, since 2×311441034120509² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311441034120529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155720517060254 + 155720517060255.

It is an arithmetic number, because the mean of its divisors is an integer number (155720517060255).

Almost surely, 2^{311441034120509} is an apocalyptic number.

It is an amenable number.

311441034120509 is a deficient number, since it is larger than the sum of its proper divisors (1).

311441034120509 is an equidigital number, since it uses as much as digits as its factorization.

311441034120509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 311441034120509 in words is "three hundred eleven trillion, four hundred forty-one billion, thirty-four million, one hundred twenty thousand, five hundred nine".