1123623115 has 4 divisors (see below), whose sum is σ = 1348347744. Its totient is φ = 898898488.

The previous prime is 1123623103. The next prime is 1123623139. The reversal of 1123623115 is 5113263211.

It is a happy number.

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 1123623115 - 2¹¹ = 1123621067 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 1123623115.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112362307 + ... + 112362316.

It is an arithmetic number, because the mean of its divisors is an integer number (337086936).

Almost surely, 2^1123623115 is an apocalyptic number.

1123623115 is a deficient number, since it is larger than the sum of its proper divisors (224724629).

1123623115 is an equidigital number, since it uses as much as digits as its factorization.

1123623115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224724628.

The product of its digits is 1080, while the sum is 25.

The square root of 1123623115 is about 33520.4879886913. The cubic root of 1123623115 is about 1039.6174366461.

Adding to 1123623115 its reverse (5113263211), we get a palindrome (6236886326).

The spelling of 1123623115 in words is "one billion, one hundred twenty-three million, six hundred twenty-three thousand, one hundred fifteen".