20601104791 has 2 divisors, whose sum is σ = 20601104792. Its totient is φ = 20601104790.

The previous prime is 20601104789. The next prime is 20601104833. The reversal of 20601104791 is 19740110602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20601104791 - 2¹ = 20601104789 is a prime.

Together with 20601104789, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20601104191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10300552395 + 10300552396.

It is an arithmetic number, because the mean of its divisors is an integer number (10300552396).

Almost surely, 2^20601104791 is an apocalyptic number.

20601104791 is a deficient number, since it is larger than the sum of its proper divisors (1).

20601104791 is an equidigital number, since it uses as much as digits as its factorization.

20601104791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 31.

The spelling of 20601104791 in words is "twenty billion, six hundred one million, one hundred four thousand, seven hundred ninety-one".