13321133238 has 96 divisors (see below), whose sum is σ = 33455151360. Its totient is φ = 3514969920.

The previous prime is 13321133153. The next prime is 13321133239. The reversal of 13321133238 is 83233112331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13321133239) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 162133 + ... + 230063.

It is an arithmetic number, because the mean of its divisors is an integer number (348491160).

Almost surely, 2^13321133238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13321133238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16727575680).

13321133238 is an abundant number, since it is smaller than the sum of its proper divisors (20134018122).

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

13321133238 is a wasteful number, since it uses less digits than its factorization.

13321133238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68002 (or 67995 counting only the distinct ones).

The product of its digits is 7776, while the sum is 30.

Adding to 13321133238 its reverse (83233112331), we get a palindrome (96554245569).

The spelling of 13321133238 in words is "thirteen billion, three hundred twenty-one million, one hundred thirty-three thousand, two hundred thirty-eight".