1120000001 has 4 divisors (see below), whose sum is σ = 1185882372. Its totient is φ = 1054117632.

The previous prime is 1119999983. The next prime is 1120000031. The reversal of 1120000001 is 1000000211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1000000211 = 7 ⋅142857173.

It can be written as a sum of positive squares in 2 ways, for example, as 727920400 + 392079601 = 26980^2 + 19801^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120000001 - 2²² = 1115805697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1120000001.

It is not an unprimeable number, because it can be changed into a prime (1120000031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32941160 + ... + 32941193.

It is an arithmetic number, because the mean of its divisors is an integer number (296470593).

Almost surely, 2^1120000001 is an apocalyptic number.

It is an amenable number.

1120000001 is a deficient number, since it is larger than the sum of its proper divisors (65882371).

1120000001 is an equidigital number, since it uses as much as digits as its factorization.

1120000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65882370.

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 1120000001 is about 33466.4010763034. The cubic root of 1120000001 is about 1038.4988206793.

Adding to 1120000001 its reverse (1000000211), we get a palindrome (2120000212).

The spelling of 1120000001 in words is "one billion, one hundred twenty million, one", and thus it is an aban number.