113123203 has 4 divisors (see below), whose sum is σ = 113233120. Its totient is φ = 113013288.

The previous prime is 113123201. The next prime is 113123221. The reversal of 113123203 is 302321311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302321311 = 1861 ⋅162451.

It is a cyclic number.

It is not a de Polignac number, because 113123203 - 2¹ = 113123201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113123201) 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, 53400 + ... + 55477.

It is an arithmetic number, because the mean of its divisors is an integer number (28308280).

Almost surely, 2^113123203 is an apocalyptic number.

113123203 is a deficient number, since it is larger than the sum of its proper divisors (109917).

113123203 is a wasteful number, since it uses less digits than its factorization.

113123203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109916.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 113123203 is about 10635.9392156969. The cubic root of 113123203 is about 483.6344526580.

Adding to 113123203 its reverse (302321311), we get a palindrome (415444514).

The spelling of 113123203 in words is "one hundred thirteen million, one hundred twenty-three thousand, two hundred three".