11420111100 has 72 divisors (see below), whose sum is σ = 33440359680. Its totient is φ = 3008665280.

The previous prime is 11420111093. The next prime is 11420111117. The reversal of 11420111100 is 111102411.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 204420 + ... + 254219.

It is an arithmetic number, because the mean of its divisors is an integer number (464449440).

Almost surely, 2^11420111100 is an apocalyptic number.

11420111100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11420111100 is an abundant number, since it is smaller than the sum of its proper divisors (22020248580).

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

11420111100 is a wasteful number, since it uses less digits than its factorization.

11420111100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458739 (or 458732 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11420111100 its reverse (111102411), we get a palindrome (11531213511).

The spelling of 11420111100 in words is "eleven billion, four hundred twenty million, one hundred eleven thousand, one hundred".