11111225645263 has 4 divisors (see below), whose sum is σ = 11382231148848. Its totient is φ = 10840220141680.

The previous prime is 11111225645237. The next prime is 11111225645287. The reversal of 11111225645263 is 36254652211111.

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-11111225645263 is a prime.

It is a Smith number, since the sum of its digits (40) 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 (11111225645363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135502751731 + ... + 135502751812.

It is an arithmetic number, because the mean of its divisors is an integer number (2845557787212).

Almost surely, 2^{11111225645263} is an apocalyptic number.

11111225645263 is a deficient number, since it is larger than the sum of its proper divisors (271005503585).

11111225645263 is an equidigital number, since it uses as much as digits as its factorization.

11111225645263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271005503584.

The product of its digits is 86400, while the sum is 40.

Adding to 11111225645263 its reverse (36254652211111), we get a palindrome (47365877856374).

The spelling of 11111225645263 in words is "eleven trillion, one hundred eleven billion, two hundred twenty-five million, six hundred forty-five thousand, two hundred sixty-three".