113331280 has 20 divisors (see below), whose sum is σ = 263495412. Its totient is φ = 45332480.

The previous prime is 113331263. The next prime is 113331293. The reversal of 113331280 is 82133311.

It can be written as a sum of positive squares in 2 ways, for example, as 54287424 + 59043856 = 7368^2 + 7684^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 708241 + ... + 708400.

Almost surely, 2^113331280 is an apocalyptic number.

113331280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113331280 is an abundant number, since it is smaller than the sum of its proper divisors (150164132).

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

113331280 is a wasteful number, since it uses less digits than its factorization.

113331280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416654 (or 1416648 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 113331280 is about 10645.7165094699. The cubic root of 113331280 is about 483.9308008438.

Adding to 113331280 its reverse (82133311), we get a palindrome (195464591).

The spelling of 113331280 in words is "one hundred thirteen million, three hundred thirty-one thousand, two hundred eighty".