20909382001201 has 4 divisors (see below), whose sum is σ = 20946521223792. Its totient is φ = 20872242778612.

The previous prime is 20909382001153. The next prime is 20909382001243. The reversal of 20909382001201 is 10210028390902.

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 20909382001201 - 2²³ = 20909373612593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20909382004201) 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, 18569610451 + ... + 18569611576.

It is an arithmetic number, because the mean of its divisors is an integer number (5236630305948).

Almost surely, 2^{20909382001201} is an apocalyptic number.

It is an amenable number.

20909382001201 is a deficient number, since it is larger than the sum of its proper divisors (37139222591).

20909382001201 is an equidigital number, since it uses as much as digits as its factorization.

20909382001201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37139222590.

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 20909382001201 in words is "twenty trillion, nine hundred nine billion, three hundred eighty-two million, one thousand, two hundred one".