1133111 has 4 divisors (see below), whose sum is σ = 1294992. Its totient is φ = 971232.

The previous prime is 1133071. The next prime is 1133131. The reversal of 1133111 is 1113311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1113311 = 61 ⋅18251.

It is a cyclic number.

It is not a de Polignac number, because 1133111 - 2⁶ = 1133047 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 1133092 and 1133101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80930 + ... + 80943.

It is an arithmetic number, because the mean of its divisors is an integer number (323748).

2^1133111 is an apocalyptic number.

1133111 is a deficient number, since it is larger than the sum of its proper divisors (161881).

1133111 is an equidigital number, since it uses as much as digits as its factorization.

1133111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161880.

The product of its digits is 9, while the sum is 11.

The square root of 1133111 is about 1064.4768668224. The cubic root of 1133111 is about 104.2535418902.

Adding to 1133111 its reverse (1113311), we get a palindrome (2246422).

The spelling of 1133111 in words is "one million, one hundred thirty-three thousand, one hundred eleven".