13013220563 has 4 divisors (see below), whose sum is σ = 14872252080. Its totient is φ = 11154189048.

The previous prime is 13013220559. The next prime is 13013220589. The reversal of 13013220563 is 36502231031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36502231031 = 7 ⋅5214604433.

It is a cyclic number.

It is not a de Polignac number, because 13013220563 - 2² = 13013220559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13013220523) 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, 929515748 + ... + 929515761.

It is an arithmetic number, because the mean of its divisors is an integer number (3718063020).

Almost surely, 2^13013220563 is an apocalyptic number.

13013220563 is a deficient number, since it is larger than the sum of its proper divisors (1859031517).

13013220563 is an equidigital number, since it uses as much as digits as its factorization.

13013220563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1859031516.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 13013220563 its reverse (36502231031), we get a palindrome (49515451594).

The spelling of 13013220563 in words is "thirteen billion, thirteen million, two hundred twenty thousand, five hundred sixty-three".