11232143 has 4 divisors (see below), whose sum is σ = 12096168. Its totient is φ = 10368120.

The previous prime is 11232139. The next prime is 11232161. The reversal of 11232143 is 34123211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11232143 - 2² = 11232139 is a prime.

It is a super-2 number, since 2×11232143² = 252322072744898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11237143) 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, 431993 + ... + 432018.

It is an arithmetic number, because the mean of its divisors is an integer number (3024042).

Almost surely, 2^11232143 is an apocalyptic number.

11232143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11232143 is a deficient number, since it is larger than the sum of its proper divisors (864025).

11232143 is an equidigital number, since it uses as much as digits as its factorization.

11232143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864024.

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

The square root of 11232143 is about 3351.4389446923. The cubic root of 11232143 is about 223.9516198129.

Adding to 11232143 its reverse (34123211), we get a palindrome (45355354).

The spelling of 11232143 in words is "eleven million, two hundred thirty-two thousand, one hundred forty-three".