111120112001 has 4 divisors (see below), whose sum is σ = 111125551152. Its totient is φ = 111114672852.

The previous prime is 111120111989. The next prime is 111120112013. The reversal of 111120112001 is 100211021111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (111120111989) and next prime (111120112013).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111120112001 is a prime.

It is a super-2 number, since 2×111120112001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111120117001) 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 3 ways as a sum of consecutive naturals, for example, 2688815 + ... + 2729828.

It is an arithmetic number, because the mean of its divisors is an integer number (27781387788).

Almost surely, 2^111120112001 is an apocalyptic number.

It is an amenable number.

111120112001 is a deficient number, since it is larger than the sum of its proper divisors (5439151).

111120112001 is an equidigital number, since it uses as much as digits as its factorization.

111120112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5439150.

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

Adding to 111120112001 its reverse (100211021111), we get a palindrome (211331133112).

The spelling of 111120112001 in words is "one hundred eleven billion, one hundred twenty million, one hundred twelve thousand, one".