113203144 has 16 divisors (see below), whose sum is σ = 215164620. Its totient is φ = 55825920.

The previous prime is 113203109. The next prime is 113203157. The reversal of 113203144 is 441302311.

It can be written as a sum of positive squares in 2 ways, for example, as 113167044 + 36100 = 10638^2 + 190^2 .

It is a super-2 number, since 2×113203144² = 25629903622969472, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 96337 + ... + 97504.

Almost surely, 2^113203144 is an apocalyptic number.

It is an amenable number.

113203144 is a deficient number, since it is larger than the sum of its proper divisors (101961476).

113203144 is a wasteful number, since it uses less digits than its factorization.

113203144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193920 (or 193916 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 113203144 is about 10639.6966122160. The cubic root of 113203144 is about 483.7483494748.

Adding to 113203144 its reverse (441302311), we get a palindrome (554505455).

The spelling of 113203144 in words is "one hundred thirteen million, two hundred three thousand, one hundred forty-four".