11115621313263 has 8 divisors (see below), whose sum is σ = 16467587130800. Its totient is φ = 7410414208824.

The previous prime is 11115621313259. The next prime is 11115621313283. The reversal of 11115621313263 is 36231312651111.

11115621313263 is a `hidden beast` number, since 1 + 1 + 1 + 1 + 5 + 621 + 3 + 1 + 3 + 26 + 3 = 666.

It is not a de Polignac number, because 11115621313263 - 2² = 11115621313259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11115621313253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205844839108 + ... + 205844839161.

It is an arithmetic number, because the mean of its divisors is an integer number (2058448391350).

Almost surely, 2^{11115621313263} is an apocalyptic number.

11115621313263 is a deficient number, since it is larger than the sum of its proper divisors (5351965817537).

11115621313263 is an equidigital number, since it uses as much as digits as its factorization.

11115621313263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411689678278 (or 411689678272 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

Adding to 11115621313263 its reverse (36231312651111), we get a palindrome (47346933964374).

The spelling of 11115621313263 in words is "eleven trillion, one hundred fifteen billion, six hundred twenty-one million, three hundred thirteen thousand, two hundred sixty-three".