11423123 has 6 divisors (see below), whose sum is σ = 12056364. Its totient is φ = 10821564.

The previous prime is 11423117. The next prime is 11423131. The reversal of 11423123 is 32132411.

It is not a de Polignac number, because 11423123 - 2⁴ = 11423107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11423173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15461 + ... + 16182.

It is an arithmetic number, because the mean of its divisors is an integer number (2009394).

Almost surely, 2^11423123 is an apocalyptic number.

11423123 is a deficient number, since it is larger than the sum of its proper divisors (633241).

11423123 is an equidigital number, since it uses as much as digits as its factorization.

11423123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31681 (or 31662 counting only the distinct ones).

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

The square root of 11423123 is about 3379.8110893954. The cubic root of 11423123 is about 225.2137754257.

Adding to 11423123 its reverse (32132411), we get a palindrome (43555534).

The spelling of 11423123 in words is "eleven million, four hundred twenty-three thousand, one hundred twenty-three".