11100111048 has 80 divisors (see below), whose sum is σ = 33482197980. Its totient is φ = 3415416192.

The previous prime is 11100111047. The next prime is 11100111091. The reversal of 11100111048 is 84011100111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7903565604 + 3196545444 = 88902^2 + 56538^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 11100111048.

It is not an unprimeable number, because it can be changed into a prime (11100111041) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 650415 + ... + 667262.

Almost surely, 2^11100111048 is an apocalyptic number.

11100111048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11100111048 is an abundant number, since it is smaller than the sum of its proper divisors (22382086932).

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

11100111048 is a wasteful number, since it uses less digits than its factorization.

11100111048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317708 (or 1317695 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 11100111048 its reverse (84011100111), we get a palindrome (95111211159).

The spelling of 11100111048 in words is "eleven billion, one hundred million, one hundred eleven thousand, forty-eight".