115303120 has 20 divisors (see below), whose sum is σ = 268079940. Its totient is φ = 46121216.

The previous prime is 115303087. The next prime is 115303121. The reversal of 115303120 is 21303511.

It can be written as a sum of positive squares in 2 ways, for example, as 51494976 + 63808144 = 7176^2 + 7988^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 115303094 and 115303103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115303121) 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, 720565 + ... + 720724.

It is an arithmetic number, because the mean of its divisors is an integer number (13403997).

Almost surely, 2^115303120 is an apocalyptic number.

115303120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115303120 is an abundant number, since it is smaller than the sum of its proper divisors (152776820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115303120 is a wasteful number, since it uses less digits than its factorization.

115303120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441302 (or 1441296 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 115303120 is about 10737.9290368301. The cubic root of 115303120 is about 486.7213007616.

Adding to 115303120 its reverse (21303511), we get a palindrome (136606631).

The spelling of 115303120 in words is "one hundred fifteen million, three hundred three thousand, one hundred twenty".