11111000500500 has 96 divisors (see below), whose sum is σ = 32371283538048. Its totient is φ = 2961463680000.

The previous prime is 11111000500429. The next prime is 11111000500507. The reversal of 11111000500500 is 500500011111.

It is a super-2 number, since 2×11111000500500² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11111000500500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111000500507) 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 31 ways as a sum of consecutive naturals, for example, 1189275 + ... + 4861725.

It is an arithmetic number, because the mean of its divisors is an integer number (337200870188).

Almost surely, 2^{11111000500500} is an apocalyptic number.

11111000500500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11111000500500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16185641769024).

11111000500500 is an abundant number, since it is smaller than the sum of its proper divisors (21260283037548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11111000500500 is a wasteful number, since it uses less digits than its factorization.

11111000500500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3674490 (or 3674478 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 15.

Adding to 11111000500500 its reverse (500500011111), we get a palindrome (11611500511611).

The spelling of 11111000500500 in words is "eleven trillion, one hundred eleven billion, five hundred thousand, five hundred".