11161423 has 8 divisors (see below), whose sum is σ = 13737248. Its totient is φ = 8830944.

The previous prime is 11161393. The next prime is 11161427. The reversal of 11161423 is 32416111.

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 11161423 - 2¹⁷ = 11030351 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11161423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11161427) 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, 61236 + ... + 61417.

It is an arithmetic number, because the mean of its divisors is an integer number (1717156).

Almost surely, 2^11161423 is an apocalyptic number.

11161423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11161423 is a deficient number, since it is larger than the sum of its proper divisors (2575825).

11161423 is a wasteful number, since it uses less digits than its factorization.

11161423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122673.

The product of its digits is 144, while the sum is 19.

The square root of 11161423 is about 3340.8715928632. The cubic root of 11161423 is about 223.4806139732.

Adding to 11161423 its reverse (32416111), we get a palindrome (43577534).

The spelling of 11161423 in words is "eleven million, one hundred sixty-one thousand, four hundred twenty-three".