20740104271 has 4 divisors (see below), whose sum is σ = 20762239792. Its totient is φ = 20717968752.

The previous prime is 20740104257. The next prime is 20740104293. The reversal of 20740104271 is 17240104702.

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

It is a cyclic number.

It is not a de Polignac number, because 20740104271 - 2⁵ = 20740104239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20740104071) 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, 11066355 + ... + 11068228.

It is an arithmetic number, because the mean of its divisors is an integer number (5190559948).

Almost surely, 2^20740104271 is an apocalyptic number.

20740104271 is a deficient number, since it is larger than the sum of its proper divisors (22135521).

20740104271 is an equidigital number, since it uses as much as digits as its factorization.

20740104271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22135520.

The product of its (nonzero) digits is 3136, while the sum is 28.

Adding to 20740104271 its reverse (17240104702), we get a palindrome (37980208973).

The spelling of 20740104271 in words is "twenty billion, seven hundred forty million, one hundred four thousand, two hundred seventy-one".