1304131111 has 2 divisors, whose sum is σ = 1304131112. Its totient is φ = 1304131110.

The previous prime is 1304131093. The next prime is 1304131163. The reversal of 1304131111 is 1111314031.

It is a weak prime.

It is an emirp because it is prime and its reverse (1111314031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1304131111 - 2¹⁵ = 1304098343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1304132111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652065555 + 652065556.

It is an arithmetic number, because the mean of its divisors is an integer number (652065556).

Almost surely, 2^1304131111 is an apocalyptic number.

1304131111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304131111 is an equidigital number, since it uses as much as digits as its factorization.

1304131111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1304131111 is about 36112.7555165761. The cubic root of 1304131111 is about 1092.5477286285.

Adding to 1304131111 its reverse (1111314031), we get a palindrome (2415445142).

The spelling of 1304131111 in words is "one billion, three hundred four million, one hundred thirty-one thousand, one hundred eleven".