11142443 has 8 divisors (see below), whose sum is σ = 12197136. Its totient is φ = 10116000.

The previous prime is 11142427. The next prime is 11142449. The reversal of 11142443 is 34424111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11142443 - 2⁴ = 11142427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11142449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6233 + ... + 7818.

It is an arithmetic number, because the mean of its divisors is an integer number (1524642).

Almost surely, 2^11142443 is an apocalyptic number.

11142443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11142443 is a deficient number, since it is larger than the sum of its proper divisors (1054693).

11142443 is a wasteful number, since it uses less digits than its factorization.

11142443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14125.

The product of its digits is 384, while the sum is 20.

The square root of 11142443 is about 3338.0298081353. The cubic root of 11142443 is about 223.3538658383.

Adding to 11142443 its reverse (34424111), we get a palindrome (45566554).

The spelling of 11142443 in words is "eleven million, one hundred forty-two thousand, four hundred forty-three".