1325311111 has 2 divisors, whose sum is σ = 1325311112. Its totient is φ = 1325311110.

The previous prime is 1325311093. The next prime is 1325311133. The reversal of 1325311111 is 1111135231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1325311111 - 2⁷ = 1325310983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1325311151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662655555 + 662655556.

It is an arithmetic number, because the mean of its divisors is an integer number (662655556).

Almost surely, 2^1325311111 is an apocalyptic number.

1325311111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325311111 is an equidigital number, since it uses as much as digits as its factorization.

1325311111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90, while the sum is 19.

The square root of 1325311111 is about 36404.8226338215. The cubic root of 1325311111 is about 1098.4305748350.

Adding to 1325311111 its reverse (1111135231), we get a palindrome (2436446342).

The spelling of 1325311111 in words is "one billion, three hundred twenty-five million, three hundred eleven thousand, one hundred eleven".