20075434422913 has 4 divisors (see below), whose sum is σ = 20098325455060. Its totient is φ = 20052543390768.

The previous prime is 20075434422877. The next prime is 20075434422917. The reversal of 20075434422913 is 31922443457002.

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 17144137740304 + 2931296682609 = 4140548^2 + 1712103^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20075434422913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20075434422917) 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, 11445514758 + ... + 11445516511.

It is an arithmetic number, because the mean of its divisors is an integer number (5024581363765).

Almost surely, 2^{20075434422913} is an apocalyptic number.

It is an amenable number.

20075434422913 is a deficient number, since it is larger than the sum of its proper divisors (22891032147).

20075434422913 is an equidigital number, since it uses as much as digits as its factorization.

20075434422913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22891032146.

The product of its (nonzero) digits is 1451520, while the sum is 46.

Adding to 20075434422913 its reverse (31922443457002), we get a palindrome (51997877879915).

The spelling of 20075434422913 in words is "twenty trillion, seventy-five billion, four hundred thirty-four million, four hundred twenty-two thousand, nine hundred thirteen".