113403123 has 12 divisors (see below), whose sum is σ = 164721960. Its totient is φ = 75178656.

The previous prime is 113403119. The next prime is 113403167. The reversal of 113403123 is 321304311.

113403123 is a `hidden beast` number, since 11 + 340 + 312 + 3 = 666.

It is not a de Polignac number, because 113403123 - 2² = 113403119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113403096 and 113403105.

It is not an unprimeable number, because it can be changed into a prime (113403023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33586 + ... + 36807.

It is an arithmetic number, because the mean of its divisors is an integer number (13726830).

Almost surely, 2^113403123 is an apocalyptic number.

113403123 is a deficient number, since it is larger than the sum of its proper divisors (51318837).

113403123 is a wasteful number, since it uses less digits than its factorization.

113403123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70578 (or 70575 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 113403123 is about 10649.0902428330. The cubic root of 113403123 is about 484.0330370978.

Adding to 113403123 its reverse (321304311), we get a palindrome (434707434).

It can be divided in two parts, 113403 and 123, that added together give a triangular number (113526 = T₄₇₆).

The spelling of 113403123 in words is "one hundred thirteen million, four hundred three thousand, one hundred twenty-three".