11123203111100 has 18 divisors (see below), whose sum is σ = 24137350751304. Its totient is φ = 4449281244400.

The previous prime is 11123203111067. The next prime is 11123203111123. The reversal of 11123203111100 is 111130232111.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 55616015456 + ... + 55616015655.

It is an arithmetic number, because the mean of its divisors is an integer number (1340963930628).

Almost surely, 2^{11123203111100} is an apocalyptic number.

11123203111100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11123203111100 is an abundant number, since it is smaller than the sum of its proper divisors (13014147640204).

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

11123203111100 is a wasteful number, since it uses less digits than its factorization.

11123203111100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111232031125 (or 111232031118 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 11123203111100 its reverse (111130232111), we get a palindrome (11234333343211).

The spelling of 11123203111100 in words is "eleven trillion, one hundred twenty-three billion, two hundred three million, one hundred eleven thousand, one hundred".