13220463543 has 8 divisors (see below), whose sum is σ = 20145468288. Its totient is φ = 7554550584.

The previous prime is 13220463497. The next prime is 13220463551. The reversal of 13220463543 is 34536402231.

It is a happy number.

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

It is not a de Polignac number, because 13220463543 - 2¹⁴ = 13220447159 is a prime.

It is a super-2 number, since 2×13220463543² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220463743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314772921 + ... + 314772962.

It is an arithmetic number, because the mean of its divisors is an integer number (2518183536).

Almost surely, 2^13220463543 is an apocalyptic number.

13220463543 is a deficient number, since it is larger than the sum of its proper divisors (6925004745).

13220463543 is an equidigital number, since it uses as much as digits as its factorization.

13220463543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629545893.

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 13220463543 its reverse (34536402231), we get a palindrome (47756865774).

The spelling of 13220463543 in words is "thirteen billion, two hundred twenty million, four hundred sixty-three thousand, five hundred forty-three".