13433221028 has 6 divisors (see below), whose sum is σ = 23508136806. Its totient is φ = 6716610512.

The previous prime is 13433221019. The next prime is 13433221049. The reversal of 13433221028 is 82012233431.

13433221028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11877076324 + 1556144704 = 108982^2 + 39448^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1679152625 + ... + 1679152632.

It is an arithmetic number, because the mean of its divisors is an integer number (3918022801).

Almost surely, 2^13433221028 is an apocalyptic number.

It is an amenable number.

13433221028 is a deficient number, since it is larger than the sum of its proper divisors (10074915778).

13433221028 is a wasteful number, since it uses less digits than its factorization.

13433221028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3358305261 (or 3358305259 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 13433221028 its reverse (82012233431), we get a palindrome (95445454459).

The spelling of 13433221028 in words is "thirteen billion, four hundred thirty-three million, two hundred twenty-one thousand, twenty-eight".