11018020415523 has 12 divisors (see below), whose sum is σ = 16147622207304. Its totient is φ = 6677588130400.

The previous prime is 11018020415513. The next prime is 11018020415641. The reversal of 11018020415523 is 32551402081011.

It is a de Polignac number, because none of the positive numbers 2^k-11018020415523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (11018020415513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15176336298 + ... + 15176337023.

It is an arithmetic number, because the mean of its divisors is an integer number (1345635183942).

Almost surely, 2^{11018020415523} is an apocalyptic number.

11018020415523 is a deficient number, since it is larger than the sum of its proper divisors (5129601791781).

11018020415523 is a wasteful number, since it uses less digits than its factorization.

11018020415523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30352673346 (or 30352673335 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 33.

Adding to 11018020415523 its reverse (32551402081011), we get a palindrome (43569422496534).

The spelling of 11018020415523 in words is "eleven trillion, eighteen billion, twenty million, four hundred fifteen thousand, five hundred twenty-three".