11623523 has 4 divisors (see below), whose sum is σ = 11870880. Its totient is φ = 11376168.

The previous prime is 11623501. The next prime is 11623537. The reversal of 11623523 is 32532611.

11623523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32532611 = 17 ⋅1913683.

It is a cyclic number.

It is not a de Polignac number, because 11623523 - 2⁸ = 11623267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11623583) 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, 123608 + ... + 123701.

It is an arithmetic number, because the mean of its divisors is an integer number (2967720).

Almost surely, 2^11623523 is an apocalyptic number.

11623523 is a deficient number, since it is larger than the sum of its proper divisors (247357).

11623523 is an equidigital number, since it uses as much as digits as its factorization.

11623523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247356.

The product of its digits is 1080, while the sum is 23.

The square root of 11623523 is about 3409.3288195772. The cubic root of 11623523 is about 226.5231504519.

The spelling of 11623523 in words is "eleven million, six hundred twenty-three thousand, five hundred twenty-three".