13133223242 has 4 divisors (see below), whose sum is σ = 19699834866. Its totient is φ = 6566611620.

The previous prime is 13133223241. The next prime is 13133223251. The reversal of 13133223242 is 24232233131.

It is a happy number.

13133223242 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 12128396641 + 1004826601 = 110129^2 + 31699^2 .

It is not an unprimeable number, because it can be changed into a prime (13133223241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3283305809 + ... + 3283305812.

Almost surely, 2^13133223242 is an apocalyptic number.

13133223242 is a deficient number, since it is larger than the sum of its proper divisors (6566611624).

13133223242 is an equidigital number, since it uses as much as digits as its factorization.

13133223242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6566611623.

The product of its digits is 5184, while the sum is 26.

Adding to 13133223242 its reverse (24232233131), we get a palindrome (37365456373).

The spelling of 13133223242 in words is "thirteen billion, one hundred thirty-three million, two hundred twenty-three thousand, two hundred forty-two".