1002110009 has 4 divisors (see below), whose sum is σ = 1002173520. Its totient is φ = 1002046500.

The previous prime is 1002110003. The next prime is 1002110029. The reversal of 1002110009 is 9000112001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9000112001 = 17 ⋅529418353.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002110009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1002109975 and 1002110002.

It is not an unprimeable number, because it can be changed into a prime (1002110003) 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, 12122 + ... + 46380.

It is an arithmetic number, because the mean of its divisors is an integer number (250543380).

Almost surely, 2^1002110009 is an apocalyptic number.

It is an amenable number.

1002110009 is a deficient number, since it is larger than the sum of its proper divisors (63511).

1002110009 is an equidigital number, since it uses as much as digits as its factorization.

1002110009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63510.

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

The square root of 1002110009 is about 31656.1211932226. The cubic root of 1002110009 is about 1000.7028422304.

The spelling of 1002110009 in words is "one billion, two million, one hundred ten thousand, nine".