113203404 has 18 divisors (see below), whose sum is σ = 286153140. Its totient is φ = 37734456.

The previous prime is 113203403. The next prime is 113203411. The reversal of 113203404 is 404302311.

113203404 is a `hidden beast` number, since 1 + 1 + 320 + 340 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (113203403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1572234 + ... + 1572305.

Almost surely, 2^113203404 is an apocalyptic number.

It is an amenable number.

113203404 is an abundant number, since it is smaller than the sum of its proper divisors (172949736).

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

113203404 is a wasteful number, since it uses less digits than its factorization.

113203404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3144549 (or 3144544 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 113203404 is about 10639.7088306025. The cubic root of 113203404 is about 483.7487198251.

Adding to 113203404 its reverse (404302311), we get a palindrome (517505715).

The spelling of 113203404 in words is "one hundred thirteen million, two hundred three thousand, four hundred four".