11123430115 has 64 divisors (see below), whose sum is σ = 15825438720. Its totient is φ = 7349253120.

The previous prime is 11123430113. The next prime is 11123430119. The reversal of 11123430115 is 51103432111.

It is a happy number.

It is not a de Polignac number, because 11123430115 - 2¹ = 11123430113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11123430113) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30984306 + ... + 30984664.

It is an arithmetic number, because the mean of its divisors is an integer number (247272480).

Almost surely, 2^11123430115 is an apocalyptic number.

11123430115 is a deficient number, since it is larger than the sum of its proper divisors (4702008605).

11123430115 is a wasteful number, since it uses less digits than its factorization.

11123430115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692.

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 11123430115 its reverse (51103432111), we get a palindrome (62226862226).

The spelling of 11123430115 in words is "eleven billion, one hundred twenty-three million, four hundred thirty thousand, one hundred fifteen".