1320316111 has 2 divisors, whose sum is σ = 1320316112. Its totient is φ = 1320316110.

The previous prime is 1320316097. The next prime is 1320316141. The reversal of 1320316111 is 1116130231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1320316111 - 2⁹ = 1320315599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320316141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660158055 + 660158056.

It is an arithmetic number, because the mean of its divisors is an integer number (660158056).

Almost surely, 2^1320316111 is an apocalyptic number.

1320316111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320316111 is an equidigital number, since it uses as much as digits as its factorization.

1320316111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 1320316111 is about 36336.1543232082. The cubic root of 1320316111 is about 1097.0488695421.

Adding to 1320316111 its reverse (1116130231), we get a palindrome (2436446342).

The spelling of 1320316111 in words is "one billion, three hundred twenty million, three hundred sixteen thousand, one hundred eleven".