23011423 has 4 divisors (see below), whose sum is σ = 23096608. Its totient is φ = 22926240.

The previous prime is 23011397. The next prime is 23011427. The reversal of 23011423 is 32411032.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23011423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23011397 and 23011406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23011427) 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, 42186 + ... + 42727.

It is an arithmetic number, because the mean of its divisors is an integer number (5774152).

Almost surely, 2^23011423 is an apocalyptic number.

23011423 is a deficient number, since it is larger than the sum of its proper divisors (85185).

23011423 is an equidigital number, since it uses as much as digits as its factorization.

23011423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85184.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 23011423 is about 4797.0223055558. The cubic root of 23011423 is about 284.4337706170.

Adding to 23011423 its reverse (32411032), we get a palindrome (55422455).

The spelling of 23011423 in words is "twenty-three million, eleven thousand, four hundred twenty-three".