1010001020009 has 4 divisors (see below), whose sum is σ = 1024226386560. Its totient is φ = 995775653460.

The previous prime is 1010001019919. The next prime is 1010001020029. The reversal of 1010001020009 is 9000201000101.

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.

It is a cyclic number.

It is not a de Polignac number, because 1010001020009 - 2²⁰ = 1009999971433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1010001019975 and 1010001020002.

It is not an unprimeable number, because it can be changed into a prime (1010001020029) 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, 7112683169 + ... + 7112683310.

It is an arithmetic number, because the mean of its divisors is an integer number (256056596640).

Almost surely, 2^{1010001020009} is an apocalyptic number.

It is an amenable number.

1010001020009 is a deficient number, since it is larger than the sum of its proper divisors (14225366551).

1010001020009 is an equidigital number, since it uses as much as digits as its factorization.

1010001020009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14225366550.

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

The spelling of 1010001020009 in words is "one trillion, ten billion, one million, twenty thousand, nine".