11389123 has 4 divisors (see below), whose sum is σ = 11448328. Its totient is φ = 11329920.

The previous prime is 11389097. The next prime is 11389153. The reversal of 11389123 is 32198311.

11389123 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.

It is a cyclic number.

It is not a de Polignac number, because 11389123 - 2¹³ = 11380931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11389091 and 11389100.

It is not an unprimeable number, because it can be changed into a prime (11389153) 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, 29313 + ... + 29698.

It is an arithmetic number, because the mean of its divisors is an integer number (2862082).

Almost surely, 2^11389123 is an apocalyptic number.

11389123 is a deficient number, since it is larger than the sum of its proper divisors (59205).

11389123 is an equidigital number, since it uses as much as digits as its factorization.

11389123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59204.

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

The square root of 11389123 is about 3374.7774741455. Note that the first 3 decimals coincide. The cubic root of 11389123 is about 224.9901098533.

The spelling of 11389123 in words is "eleven million, three hundred eighty-nine thousand, one hundred twenty-three".