113121113 has 8 divisors (see below), whose sum is σ = 131472960. Its totient is φ = 95317200.

The previous prime is 113121103. The next prime is 113121121. The reversal of 113121113 is 311121311.

It is a happy number.

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 113121113 - 2⁶ = 113121049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113121103) 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, 136538 + ... + 137363.

It is an arithmetic number, because the mean of its divisors is an integer number (16434120).

Almost surely, 2^113121113 is an apocalyptic number.

It is an amenable number.

113121113 is a deficient number, since it is larger than the sum of its proper divisors (18351847).

113121113 is an equidigital number, since it uses as much as digits as its factorization.

113121113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273967.

The product of its digits is 18, while the sum is 14.

The square root of 113121113 is about 10635.8409634594. The cubic root of 113121113 is about 483.6314741879.

Adding to 113121113 its reverse (311121311), we get a palindrome (424242424).

The spelling of 113121113 in words is "one hundred thirteen million, one hundred twenty-one thousand, one hundred thirteen".