11121112001 has 8 divisors (see below), whose sum is σ = 11149881600. Its totient is φ = 11092379760.

The previous prime is 11121111979. The next prime is 11121112021. The reversal of 11121112001 is 10021112111.

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 11121112001 - 2²⁶ = 11054003137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11121112021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644555 + ... + 661583.

It is an arithmetic number, because the mean of its divisors is an integer number (1393735200).

Almost surely, 2^11121112001 is an apocalyptic number.

It is an amenable number.

11121112001 is a deficient number, since it is larger than the sum of its proper divisors (28769599).

11121112001 is an equidigital number, since it uses as much as digits as its factorization.

11121112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18679.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11121112001 its reverse (10021112111), we get a palindrome (21142224112).

The spelling of 11121112001 in words is "eleven billion, one hundred twenty-one million, one hundred twelve thousand, one".