11159423 has 4 divisors (see below), whose sum is σ = 12173928. Its totient is φ = 10144920.

The previous prime is 11159419. The next prime is 11159431. The reversal of 11159423 is 32495111.

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 11159423 - 2² = 11159419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11159392 and 11159401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11159413) 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, 507236 + ... + 507257.

It is an arithmetic number, because the mean of its divisors is an integer number (3043482).

Almost surely, 2^11159423 is an apocalyptic number.

11159423 is a deficient number, since it is larger than the sum of its proper divisors (1014505).

11159423 is a wasteful number, since it uses less digits than its factorization.

11159423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014504.

The product of its digits is 1080, while the sum is 26.

The square root of 11159423 is about 3340.5722563657. The cubic root of 11159423 is about 223.4672647814.

The spelling of 11159423 in words is "eleven million, one hundred fifty-nine thousand, four hundred twenty-three".