1328111 has 2 divisors, whose sum is σ = 1328112. Its totient is φ = 1328110.

The previous prime is 1328101. The next prime is 1328143. The reversal of 1328111 is 1118231.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1328111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1328111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1328101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664055 + 664056.

It is an arithmetic number, because the mean of its divisors is an integer number (664056).

2^1328111 is an apocalyptic number.

1328111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328111 is an equidigital number, since it uses as much as digits as its factorization.

1328111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48, while the sum is 17.

The square root of 1328111 is about 1152.4369830928. The cubic root of 1328111 is about 109.9203555713.

The spelling of 1328111 in words is "one million, three hundred twenty-eight thousand, one hundred eleven".