1109002001 has 4 divisors (see below), whose sum is σ = 1118816292. Its totient is φ = 1099187712.

The previous prime is 1109001979. The next prime is 1109002003. The reversal of 1109002001 is 1002009011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 257763025 + 851238976 = 16055^2 + 29176^2 .

It is a cyclic number.

It is not a de Polignac number, because 1109002001 - 2¹⁸ = 1108739857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1109002003) 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, 4906976 + ... + 4907201.

It is an arithmetic number, because the mean of its divisors is an integer number (279704073).

Almost surely, 2^1109002001 is an apocalyptic number.

It is an amenable number.

1109002001 is a deficient number, since it is larger than the sum of its proper divisors (9814291).

1109002001 is an equidigital number, since it uses as much as digits as its factorization.

1109002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9814290.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1109002001 is about 33301.6816542348. The cubic root of 1109002001 is about 1035.0884040026.

The spelling of 1109002001 in words is "one billion, one hundred nine million, two thousand, one".