11938123 has 4 divisors (see below), whose sum is σ = 12014320. Its totient is φ = 11861928.

The previous prime is 11938109. The next prime is 11938151. The reversal of 11938123 is 32183911.

11938123 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: 32183911 = 1657 ⋅19423.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11938123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11938091 and 11938100.

It is not an unprimeable number, because it can be changed into a prime (11938103) 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, 37863 + ... + 38176.

It is an arithmetic number, because the mean of its divisors is an integer number (3003580).

Almost surely, 2^11938123 is an apocalyptic number.

11938123 is a deficient number, since it is larger than the sum of its proper divisors (76197).

11938123 is an equidigital number, since it uses as much as digits as its factorization.

11938123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76196.

The product of its digits is 1296, while the sum is 28.

The square root of 11938123 is about 3455.1588964909. The cubic root of 11938123 is about 228.5486619623.

It can be divided in two parts, 1193 and 8123, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 11938123 in words is "eleven million, nine hundred thirty-eight thousand, one hundred twenty-three".