1323111 has 16 divisors (see below), whose sum is σ = 1870848. Its totient is φ = 830400.

The previous prime is 1323109. The next prime is 1323131. The reversal of 1323111 is 1113231.

It is not a de Polignac number, because 1323111 - 2¹ = 1323109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3640 + ... + 3986.

It is an arithmetic number, because the mean of its divisors is an integer number (116928).

2^1323111 is an apocalyptic number.

1323111 is a deficient number, since it is larger than the sum of its proper divisors (547737).

1323111 is a wasteful number, since it uses less digits than its factorization.

1323111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422.

The product of its digits is 18, while the sum is 12.

The square root of 1323111 is about 1150.2656214979. The cubic root of 1323111 is about 109.7822413806.

Adding to 1323111 its reverse (1113231), we get a palindrome (2436342).

It can be divided in two parts, 13231 and 11, that multiplied together give a palindrome (145541).

The spelling of 1323111 in words is "one million, three hundred twenty-three thousand, one hundred eleven".