20504510053343 has 4 divisors (see below), whose sum is σ = 20504599723128. Its totient is φ = 20504420383560.

The previous prime is 20504510053337. The next prime is 20504510053367. The reversal of 20504510053343 is 34335001540502.

It is a happy number.

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 20504510053343 - 2¹⁶ = 20504509987807 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 (20504510053303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44491013 + ... + 44949518.

It is an arithmetic number, because the mean of its divisors is an integer number (5126149930782).

Almost surely, 2^{20504510053343} is an apocalyptic number.

20504510053343 is a deficient number, since it is larger than the sum of its proper divisors (89669785).

20504510053343 is an equidigital number, since it uses as much as digits as its factorization.

20504510053343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89669784.

The product of its (nonzero) digits is 108000, while the sum is 35.

Adding to 20504510053343 its reverse (34335001540502), we get a palindrome (54839511593845).

The spelling of 20504510053343 in words is "twenty trillion, five hundred four billion, five hundred ten million, fifty-three thousand, three hundred forty-three".