11380123 has 4 divisors (see below), whose sum is σ = 12049560. Its totient is φ = 10710688.

The previous prime is 11380121. The next prime is 11380133. The reversal of 11380123 is 32108311.

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 11380123 - 2¹ = 11380121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11380123.

It is not an unprimeable number, because it can be changed into a prime (11380121) 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, 334693 + ... + 334726.

It is an arithmetic number, because the mean of its divisors is an integer number (3012390).

Almost surely, 2^11380123 is an apocalyptic number.

11380123 is a deficient number, since it is larger than the sum of its proper divisors (669437).

11380123 is an equidigital number, since it uses as much as digits as its factorization.

11380123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669436.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 11380123 is about 3373.4437893642. The cubic root of 11380123 is about 224.9308297664.

Adding to 11380123 its reverse (32108311), we get a palindrome (43488434).

The spelling of 11380123 in words is "eleven million, three hundred eighty thousand, one hundred twenty-three".