11142233 has 4 divisors (see below), whose sum is σ = 11177700. Its totient is φ = 11106768.

The previous prime is 11142223. The next prime is 11142247. The reversal of 11142233 is 33224111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33224111 = 29 ⋅1145659.

It can be written as a sum of positive squares in 2 ways, for example, as 4214809 + 6927424 = 2053^2 + 2632^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11142233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11142223) 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, 17258 + ... + 17891.

It is an arithmetic number, because the mean of its divisors is an integer number (2794425).

Almost surely, 2^11142233 is an apocalyptic number.

It is an amenable number.

11142233 is a deficient number, since it is larger than the sum of its proper divisors (35467).

11142233 is an equidigital number, since it uses as much as digits as its factorization.

11142233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35466.

The product of its digits is 144, while the sum is 17.

The square root of 11142233 is about 3337.9983523064. The cubic root of 11142233 is about 223.3524626569.

Adding to 11142233 its reverse (33224111), we get a palindrome (44366344).

The spelling of 11142233 in words is "eleven million, one hundred forty-two thousand, two hundred thirty-three".