1304111 has 2 divisors, whose sum is σ = 1304112. Its totient is φ = 1304110.

The previous prime is 1304089. The next prime is 1304113. The reversal of 1304111 is 1114031.

It is a strong prime.

It is an emirp because it is prime and its reverse (1114031) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1304111 is a prime.

Together with 1304113, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1304092 and 1304101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1304113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652055 + 652056.

It is an arithmetic number, because the mean of its divisors is an integer number (652056).

2^1304111 is an apocalyptic number.

1304111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304111 is an equidigital number, since it uses as much as digits as its factorization.

1304111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1304111 is about 1141.9767948606. The cubic root of 1304111 is about 109.2542112542.

Adding to 1304111 its reverse (1114031), we get a palindrome (2418142).

The spelling of 1304111 in words is "one million, three hundred four thousand, one hundred eleven".