13020220223 has 4 divisors (see below), whose sum is σ = 13103151720. Its totient is φ = 12937288728.

The previous prime is 13020220183. The next prime is 13020220229. The reversal of 13020220223 is 32202202031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13020220223 is a prime.

It is a super-2 number, since 2×13020220223² (a number of 21 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 (13020220229) 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, 41465513 + ... + 41465826.

It is an arithmetic number, because the mean of its divisors is an integer number (3275787930).

Almost surely, 2^13020220223 is an apocalyptic number.

13020220223 is a deficient number, since it is larger than the sum of its proper divisors (82931497).

13020220223 is an equidigital number, since it uses as much as digits as its factorization.

13020220223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82931496.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 13020220223 its reverse (32202202031), we get a palindrome (45222422254).

The spelling of 13020220223 in words is "thirteen billion, twenty million, two hundred twenty thousand, two hundred twenty-three".