111120110001 has 24 divisors (see below), whose sum is σ = 160854572424. Its totient is φ = 73919692800.

The previous prime is 111120109993. The next prime is 111120110011. The reversal of 111120110001 is 100011021111.

It can be written as a sum of positive squares in 4 ways, for example, as 66757640625 + 44362469376 = 258375^2 + 210624^2 .

It is not a de Polignac number, because 111120110001 - 2³ = 111120109993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (111120110011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23142801 + ... + 23147601.

It is an arithmetic number, because the mean of its divisors is an integer number (6702273851).

Almost surely, 2^111120110001 is an apocalyptic number.

It is an amenable number.

111120110001 is a deficient number, since it is larger than the sum of its proper divisors (49734462423).

111120110001 is a wasteful number, since it uses less digits than its factorization.

111120110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9841 (or 9838 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 111120110001 its reverse (100011021111), we get a palindrome (211131131112).

The spelling of 111120110001 in words is "one hundred eleven billion, one hundred twenty million, one hundred ten thousand, one".