113133331 has 4 divisors (see below), whose sum is σ = 114299752. Its totient is φ = 111966912.

The previous prime is 113133313. The next prime is 113133337. The reversal of 113133331 is 133331311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133331311 = 2011 ⋅66301.

It is a cyclic number.

It is not a de Polignac number, because 113133331 - 2⁵ = 113133299 is a prime.

It is a super-2 number, since 2×113133331² = 25598301166311122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113133299 and 113133308.

It is not an unprimeable number, because it can be changed into a prime (113133337) 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, 583065 + ... + 583258.

It is an arithmetic number, because the mean of its divisors is an integer number (28574938).

Almost surely, 2^113133331 is an apocalyptic number.

113133331 is a deficient number, since it is larger than the sum of its proper divisors (1166421).

113133331 is an equidigital number, since it uses as much as digits as its factorization.

113133331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166420.

The product of its digits is 243, while the sum is 19.

The square root of 113133331 is about 10636.4153266032. The cubic root of 113133331 is about 483.6488856049.

Adding to 113133331 its reverse (133331311), we get a palindrome (246464642).

The spelling of 113133331 in words is "one hundred thirteen million, one hundred thirty-three thousand, three hundred thirty-one".