10201020009 has 8 divisors (see below), whose sum is σ = 13603168800. Its totient is φ = 6799775616.

The previous prime is 10201019963. The next prime is 10201020023. The reversal of 10201020009 is 90002010201.

It is a happy number.

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

It is not a de Polignac number, because 10201020009 - 2⁸ = 10201019753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10201020009.

It is not an unprimeable number, because it can be changed into a prime (10201020059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199327 + ... + 245220.

It is an arithmetic number, because the mean of its divisors is an integer number (1700396100).

Almost surely, 2^10201020009 is an apocalyptic number.

It is an amenable number.

10201020009 is a deficient number, since it is larger than the sum of its proper divisors (3402148791).

10201020009 is an equidigital number, since it uses as much as digits as its factorization.

10201020009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452199.

The product of its (nonzero) digits is 36, while the sum is 15.

The spelling of 10201020009 in words is "ten billion, two hundred one million, twenty thousand, nine".