113312309 has 8 divisors (see below), whose sum is σ = 127876320. Its totient is φ = 99458800.

The previous prime is 113312299. The next prime is 113312341. The reversal of 113312309 is 903213311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 113312309 - 2¹⁶ = 113246773 is a prime.

It is a super-2 number, since 2×113312309² = 25679358741822962, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113312359) 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, 177287 + ... + 177924.

It is an arithmetic number, because the mean of its divisors is an integer number (15984540).

Almost surely, 2^113312309 is an apocalyptic number.

It is an amenable number.

113312309 is a deficient number, since it is larger than the sum of its proper divisors (14564011).

113312309 is a wasteful number, since it uses less digits than its factorization.

113312309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355251.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 113312309 is about 10644.8254565305. The cubic root of 113312309 is about 483.9037969324.

The spelling of 113312309 in words is "one hundred thirteen million, three hundred twelve thousand, three hundred nine".