11523311100215 has 16 divisors (see below), whose sum is σ = 14089538426688. Its totient is φ = 9044288438016.

The previous prime is 11523311100187. The next prime is 11523311100247. The reversal of 11523311100215 is 51200111332511.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11523311100215 - 2⁶ = 11523311100151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4710254 + ... + 6725556.

It is an arithmetic number, because the mean of its divisors is an integer number (880596151668).

Almost surely, 2^{11523311100215} is an apocalyptic number.

11523311100215 is a deficient number, since it is larger than the sum of its proper divisors (2566227326473).

11523311100215 is a wasteful number, since it uses less digits than its factorization.

11523311100215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036938.

The product of its (nonzero) digits is 900, while the sum is 26.

Adding to 11523311100215 its reverse (51200111332511), we get a palindrome (62723422432726).

The spelling of 11523311100215 in words is "eleven trillion, five hundred twenty-three billion, three hundred eleven million, one hundred thousand, two hundred fifteen".