115121113 has 8 divisors (see below), whose sum is σ = 117338760. Its totient is φ = 112924800.

The previous prime is 115121101. The next prime is 115121117. The reversal of 115121113 is 311121511.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 83850649 + 31270464 = 9157^2 + 5592^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115121113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115121117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5781 + ... + 16237.

It is an arithmetic number, because the mean of its divisors is an integer number (14667345).

Almost surely, 2^115121113 is an apocalyptic number.

It is an amenable number.

115121113 is a deficient number, since it is larger than the sum of its proper divisors (2217647).

115121113 is a wasteful number, since it uses less digits than its factorization.

115121113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10667.

The product of its digits is 30, while the sum is 16.

The square root of 115121113 is about 10729.4507315146. The cubic root of 115121113 is about 486.4650679256.

Adding to 115121113 its reverse (311121511), we get a palindrome (426242624).

The spelling of 115121113 in words is "one hundred fifteen million, one hundred twenty-one thousand, one hundred thirteen".