115103220 has 48 divisors (see below), whose sum is σ = 323483328. Its totient is φ = 30580480.

The previous prime is 115103179. The next prime is 115103231. The reversal of 115103220 is 22301511.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 115103220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13447 + ... + 20273.

It is an arithmetic number, because the mean of its divisors is an integer number (6739236).

Almost surely, 2^115103220 is an apocalyptic number.

115103220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115103220 is an abundant number, since it is smaller than the sum of its proper divisors (208380108).

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

115103220 is a wasteful number, since it uses less digits than its factorization.

115103220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7120 (or 7118 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 115103220 is about 10728.6168726449. The cubic root of 115103220 is about 486.4398632513.

Adding to 115103220 its reverse (22301511), we get a palindrome (137404731).

The spelling of 115103220 in words is "one hundred fifteen million, one hundred three thousand, two hundred twenty".