113128480 has 24 divisors (see below), whose sum is σ = 267266412. Its totient is φ = 45251328.

The previous prime is 113128469. The next prime is 113128487. The reversal of 113128480 is 84821311.

It can be written as a sum of positive squares in 2 ways, for example, as 109579024 + 3549456 = 10468^2 + 1884^2 .

It is a super-2 number, since 2×113128480² = 25596105974220800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113128487) 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, 353367 + ... + 353686.

Almost surely, 2^113128480 is an apocalyptic number.

113128480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113128480 is an abundant number, since it is smaller than the sum of its proper divisors (154137932).

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

113128480 is an equidigital number, since it uses as much as digits as its factorization.

113128480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707068 (or 707060 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 113128480 is about 10636.1872868054. The cubic root of 113128480 is about 483.6419727755.

Adding to 113128480 its reverse (84821311), we get a palindrome (197949791).

The spelling of 113128480 in words is "one hundred thirteen million, one hundred twenty-eight thousand, four hundred eighty".