311407141 has 2 divisors, whose sum is σ = 311407142. Its totient is φ = 311407140.

The previous prime is 311407111. The next prime is 311407181. The reversal of 311407141 is 141704113.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 183060900 + 128346241 = 13530^2 + 11329^2 .

It is an emirp because it is prime and its reverse (141704113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 311407141 - 2¹¹ = 311405093 is a prime.

It is a super-3 number, since 3×311407141³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311407111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155703570 + 155703571.

It is an arithmetic number, because the mean of its divisors is an integer number (155703571).

Almost surely, 2^311407141 is an apocalyptic number.

It is an amenable number.

311407141 is a deficient number, since it is larger than the sum of its proper divisors (1).

311407141 is an equidigital number, since it uses as much as digits as its factorization.

311407141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 311407141 is about 17646.7317370668. The cubic root of 311407141 is about 677.8124200086.

The spelling of 311407141 in words is "three hundred eleven million, four hundred seven thousand, one hundred forty-one".