1111102001 has 8 divisors (see below), whose sum is σ = 1116775464. Its totient is φ = 1105441920.

The previous prime is 1111101991. The next prime is 1111102049. The reversal of 1111102001 is 1002011111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 236421376 + 874680625 = 15376^2 + 29575^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111102001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1111102001.

It is not an unprimeable number, because it can be changed into a prime (1111102301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190805 + ... + 196541.

It is an arithmetic number, because the mean of its divisors is an integer number (139596933).

Almost surely, 2^1111102001 is an apocalyptic number.

It is an amenable number.

1111102001 is a deficient number, since it is larger than the sum of its proper divisors (5673463).

1111102001 is an equidigital number, since it uses as much as digits as its factorization.

1111102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6691.

The product of its (nonzero) digits is 2, while the sum is 8.

The square root of 1111102001 is about 33333.1966813866. The cubic root of 1111102001 is about 1035.7413379202.

Adding to 1111102001 its reverse (1002011111), we get a palindrome (2113113112).

The spelling of 1111102001 in words is "one billion, one hundred eleven million, one hundred two thousand, one".