13223522988 has 36 divisors (see below), whose sum is σ = 35997369408. Its totient is φ = 4068776160.

The previous prime is 13223522987. The next prime is 13223523007. The reversal of 13223522988 is 88922532231.

13223522988 is a `hidden beast` number, since 1 + 3 + 2 + 2 + 352 + 298 + 8 = 666.

13223522988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (13223522987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14127228 + ... + 14128163.

It is an arithmetic number, because the mean of its divisors is an integer number (999926928).

Almost surely, 2^13223522988 is an apocalyptic number.

13223522988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13223522988 is an abundant number, since it is smaller than the sum of its proper divisors (22773846420).

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

13223522988 is a wasteful number, since it uses less digits than its factorization.

13223522988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28255414 (or 28255409 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The spelling of 13223522988 in words is "thirteen billion, two hundred twenty-three million, five hundred twenty-two thousand, nine hundred eighty-eight".