133112013 has 4 divisors (see below), whose sum is σ = 177482688. Its totient is φ = 88741340.

The previous prime is 133112011. The next prime is 133112029. The reversal of 133112013 is 310211331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 133112013 - 2¹ = 133112011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133111983 and 133112001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133112011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22185333 + ... + 22185338.

It is an arithmetic number, because the mean of its divisors is an integer number (44370672).

Almost surely, 2^133112013 is an apocalyptic number.

It is an amenable number.

133112013 is a deficient number, since it is larger than the sum of its proper divisors (44370675).

133112013 is an equidigital number, since it uses as much as digits as its factorization.

133112013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44370674.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 133112013 is about 11537.4179520376. The cubic root of 133112013 is about 510.5901319534.

Adding to 133112013 its reverse (310211331), we get a palindrome (443323344).

The spelling of 133112013 in words is "one hundred thirty-three million, one hundred twelve thousand, thirteen".