20434544120317 has 8 divisors (see below), whose sum is σ = 20437991521920. Its totient is φ = 20431096940400.

The previous prime is 20434544120293. The next prime is 20434544120351. The reversal of 20434544120317 is 71302144543402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20434544120317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20434544120317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20434544120357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377335192 + ... + 377389342.

It is an arithmetic number, because the mean of its divisors is an integer number (2554748940240).

Almost surely, 2^{20434544120317} is an apocalyptic number.

It is an amenable number.

20434544120317 is a deficient number, since it is larger than the sum of its proper divisors (3447401603).

20434544120317 is an equidigital number, since it uses as much as digits as its factorization.

20434544120317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110843.

The product of its (nonzero) digits is 322560, while the sum is 40.

Adding to 20434544120317 its reverse (71302144543402), we get a palindrome (91736688663719).

The spelling of 20434544120317 in words is "twenty trillion, four hundred thirty-four billion, five hundred forty-four million, one hundred twenty thousand, three hundred seventeen".