11100001121 has 8 divisors (see below), whose sum is σ = 12115800288. Its totient is φ = 10085320000.

The previous prime is 11100001117. The next prime is 11100001163. The reversal of 11100001121 is 12110000111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11100001121 - 2² = 11100001117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11100001099 and 11100001108.

It is not an unprimeable number, because it can be changed into a prime (11100901121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258680 + ... + 298521.

It is an arithmetic number, because the mean of its divisors is an integer number (1514475036).

Almost surely, 2^11100001121 is an apocalyptic number.

11100001121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11100001121 is a deficient number, since it is larger than the sum of its proper divisors (1015799167).

11100001121 is a wasteful number, since it uses less digits than its factorization.

11100001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559023.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 11100001121 its reverse (12110000111), we get a palindrome (23210001232).

The spelling of 11100001121 in words is "eleven billion, one hundred million, one thousand, one hundred twenty-one".