20413321443503 has 8 divisors (see below), whose sum is σ = 21074533823616. Its totient is φ = 19752278947200.

The previous prime is 20413321443481. The next prime is 20413321443533. The reversal of 20413321443503 is 30534412331402.

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

It is a cyclic number.

It is not a de Polignac number, because 20413321443503 - 2²⁰ = 20413320394927 is a prime.

It is a super-2 number, since 2×20413321443503² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20413321443533) 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 7 ways as a sum of consecutive naturals, for example, 42226718 + ... + 42707403.

It is an arithmetic number, because the mean of its divisors is an integer number (2634316727952).

Almost surely, 2^{20413321443503} is an apocalyptic number.

20413321443503 is a deficient number, since it is larger than the sum of its proper divisors (661212380113).

20413321443503 is an equidigital number, since it uses as much as digits as its factorization.

20413321443503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84941905.

The product of its (nonzero) digits is 103680, while the sum is 35.

Adding to 20413321443503 its reverse (30534412331402), we get a palindrome (50947733774905).

The spelling of 20413321443503 in words is "twenty trillion, four hundred thirteen billion, three hundred twenty-one million, four hundred forty-three thousand, five hundred three".