20109202001 has 8 divisors (see below), whose sum is σ = 22996312704. Its totient is φ = 17225683200.

The previous prime is 20109201997. The next prime is 20109202021. The reversal of 20109202001 is 10020290102.

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

It is a cyclic number.

It is not a de Polignac number, because 20109202001 - 2² = 20109201997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20109202021) 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, 885965 + ... + 908378.

It is an arithmetic number, because the mean of its divisors is an integer number (2874539088).

Almost surely, 2^20109202001 is an apocalyptic number.

It is an amenable number.

20109202001 is a deficient number, since it is larger than the sum of its proper divisors (2887110703).

20109202001 is a wasteful number, since it uses less digits than its factorization.

20109202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795951.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 20109202001 its reverse (10020290102), we get a palindrome (30129492103).

The spelling of 20109202001 in words is "twenty billion, one hundred nine million, two hundred two thousand, one".