133312113 has 72 divisors (see below), whose sum is σ = 236527200. Its totient is φ = 71850240.

The previous prime is 133312103. The next prime is 133312129. The reversal of 133312113 is 311213331.

It is a happy number.

It is not a de Polignac number, because 133312113 - 2⁹ = 133311601 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (133312103) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 351558 + ... + 351936.

It is an arithmetic number, because the mean of its divisors is an integer number (3285100).

Almost surely, 2^133312113 is an apocalyptic number.

It is an amenable number.

133312113 is a deficient number, since it is larger than the sum of its proper divisors (103215087).

133312113 is a wasteful number, since it uses less digits than its factorization.

133312113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 429 counting only the distinct ones).

The product of its digits is 162, while the sum is 18.

The square root of 133312113 is about 11546.0864798424. The cubic root of 133312113 is about 510.8458512551.

Adding to 133312113 its reverse (311213331), we get a palindrome (444525444).

The spelling of 133312113 in words is "one hundred thirty-three million, three hundred twelve thousand, one hundred thirteen".