11115245263 has 4 divisors (see below), whose sum is σ = 11386348848. Its totient is φ = 10844141680.

The previous prime is 11115245177. The next prime is 11115245287. The reversal of 11115245263 is 36254251111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11115245263 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11115245293) 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, 135551731 + ... + 135551812.

It is an arithmetic number, because the mean of its divisors is an integer number (2846587212).

Almost surely, 2^11115245263 is an apocalyptic number.

11115245263 is a deficient number, since it is larger than the sum of its proper divisors (271103585).

11115245263 is an equidigital number, since it uses as much as digits as its factorization.

11115245263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271103584.

The product of its digits is 7200, while the sum is 31.

Adding to 11115245263 its reverse (36254251111), we get a palindrome (47369496374).

The spelling of 11115245263 in words is "eleven billion, one hundred fifteen million, two hundred forty-five thousand, two hundred sixty-three".