133123233318 has 16 divisors (see below), whose sum is σ = 277822400256. Its totient is φ = 42445088840.

The previous prime is 133123233311. The next prime is 133123233329. The reversal of 133123233318 is 813332321331.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133123233311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482330418 + ... + 482330693.

It is an arithmetic number, because the mean of its divisors is an integer number (17363900016).

Almost surely, 2^133123233318 is an apocalyptic number.

133123233318 is an abundant number, since it is smaller than the sum of its proper divisors (144699166938).

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

133123233318 is a wasteful number, since it uses less digits than its factorization.

133123233318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964661139.

The product of its digits is 23328, while the sum is 33.

Adding to 133123233318 its reverse (813332321331), we get a palindrome (946455554649).

The spelling of 133123233318 in words is "one hundred thirty-three billion, one hundred twenty-three million, two hundred thirty-three thousand, three hundred eighteen".