311321341 has 2 divisors, whose sum is σ = 311321342. Its totient is φ = 311321340.

The previous prime is 311321321. The next prime is 311321363. The reversal of 311321341 is 143123113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 293436900 + 17884441 = 17130^2 + 4229^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311321341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311321321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155660670 + 155660671.

It is an arithmetic number, because the mean of its divisors is an integer number (155660671).

Almost surely, 2^311321341 is an apocalyptic number.

It is an amenable number.

311321341 is a deficient number, since it is larger than the sum of its proper divisors (1).

311321341 is an equidigital number, since it uses as much as digits as its factorization.

311321341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 19.

The square root of 311321341 is about 17644.3005245320. The cubic root of 311321341 is about 677.7501631965.

Adding to 311321341 its reverse (143123113), we get a palindrome (454444454).

The spelling of 311321341 in words is "three hundred eleven million, three hundred twenty-one thousand, three hundred forty-one".