11111243300 has 72 divisors (see below), whose sum is σ = 24820739496. Its totient is φ = 4315484160.

The previous prime is 11111243287. The next prime is 11111243317. The reversal of 11111243300 is 334211111.

It can be written as a sum of positive squares in 12 ways, for example, as 49252324 + 11061990976 = 7018^2 + 105176^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 503294 + ... + 524906.

It is an arithmetic number, because the mean of its divisors is an integer number (344732493).

Almost surely, 2^11111243300 is an apocalyptic number.

11111243300 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 11111243300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12410369748).

11111243300 is an abundant number, since it is smaller than the sum of its proper divisors (13709496196).

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

11111243300 is a wasteful number, since it uses less digits than its factorization.

11111243300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21777 (or 21770 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11111243300 its reverse (334211111), we get a palindrome (11445454411).

The spelling of 11111243300 in words is "eleven billion, one hundred eleven million, two hundred forty-three thousand, three hundred".