20411403104009 has 4 divisors (see below), whose sum is σ = 20411483572740. Its totient is φ = 20411322635280.

The previous prime is 20411403103963. The next prime is 20411403104039. The reversal of 20411403104009 is 90040130411402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1416449881609 + 18994953222400 = 1190147^2 + 4358320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20411403104009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20411403104039) 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, 39852674 + ... + 40361595.

It is an arithmetic number, because the mean of its divisors is an integer number (5102870893185).

Almost surely, 2^{20411403104009} is an apocalyptic number.

It is an amenable number.

20411403104009 is a deficient number, since it is larger than the sum of its proper divisors (80468731).

20411403104009 is an equidigital number, since it uses as much as digits as its factorization.

20411403104009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80468730.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 20411403104009 in words is "twenty trillion, four hundred eleven billion, four hundred three million, one hundred four thousand, nine".