13223000020 has 48 divisors (see below), whose sum is σ = 27918475200. Its totient is φ = 5260654080.

The previous prime is 13222999981. The next prime is 13223000029. The reversal of 13223000020 is 2000032231.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223000029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6067291 + ... + 6069469.

It is an arithmetic number, because the mean of its divisors is an integer number (581634900).

Almost surely, 2^13223000020 is an apocalyptic number.

13223000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13223000020 is an abundant number, since it is smaller than the sum of its proper divisors (14695475180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13223000020 is a wasteful number, since it uses less digits than its factorization.

13223000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3688 (or 3686 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 13223000020 its reverse (2000032231), we get a palindrome (15223032251).

The spelling of 13223000020 in words is "thirteen billion, two hundred twenty-three million, twenty", and thus it is an aban number.