1120112001 has 6 divisors (see below), whose sum is σ = 1617939570. Its totient is φ = 746741328.

The previous prime is 1120111981. The next prime is 1120112009. The reversal of 1120112001 is 1002110211.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 560552976 + 559559025 = 23676^2 + 23655^2 .

It is not a de Polignac number, because 1120112001 - 2⁵ = 1120111969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 124456889 = 1120112001 / (1 + 1 + 2 + 0 + 1 + 1 + 2 + 0 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (1120112009) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62228436 + ... + 62228453.

It is an arithmetic number, because the mean of its divisors is an integer number (269656595).

Almost surely, 2^1120112001 is an apocalyptic number.

It is an amenable number.

1120112001 is a deficient number, since it is larger than the sum of its proper divisors (497827569).

1120112001 is a wasteful number, since it uses less digits than its factorization.

1120112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124456895 (or 124456892 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1120112001 is about 33468.0743545248. The cubic root of 1120112001 is about 1038.5334361528.

Adding to 1120112001 its reverse (1002110211), we get a palindrome (2122222212).

The spelling of 1120112001 in words is "one billion, one hundred twenty million, one hundred twelve thousand, one".