113313309 has 4 divisors (see below), whose sum is σ = 151084416. Its totient is φ = 75542204.

The previous prime is 113313293. The next prime is 113313323. The reversal of 113313309 is 903313311.

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, and also an emirpimes, since its reverse is a distinct semiprime: 903313311 = 3 ⋅301104437.

It is a cyclic number.

It is not a de Polignac number, because 113313309 - 2⁴ = 113313293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113313329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18885549 + ... + 18885554.

It is an arithmetic number, because the mean of its divisors is an integer number (37771104).

Almost surely, 2^113313309 is an apocalyptic number.

It is an amenable number.

113313309 is a deficient number, since it is larger than the sum of its proper divisors (37771107).

113313309 is an equidigital number, since it uses as much as digits as its factorization.

113313309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37771106.

The product of its (nonzero) digits is 729, while the sum is 24.

The square root of 113313309 is about 10644.8724276057. The cubic root of 113313309 is about 483.9052204387.

The spelling of 113313309 in words is "one hundred thirteen million, three hundred thirteen thousand, three hundred nine".