113203100203 has 4 divisors (see below), whose sum is σ = 115339007808. Its totient is φ = 111067192600.

The previous prime is 113203100201. The next prime is 113203100267. The reversal of 113203100203 is 302001302311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302001302311 = 140773 ⋅2145307.

It is a cyclic number.

It is not a de Polignac number, because 113203100203 - 2¹ = 113203100201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113203100201) 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, 1067953723 + ... + 1067953828.

It is an arithmetic number, because the mean of its divisors is an integer number (28834751952).

Almost surely, 2^113203100203 is an apocalyptic number.

113203100203 is a deficient number, since it is larger than the sum of its proper divisors (2135907605).

113203100203 is an equidigital number, since it uses as much as digits as its factorization.

113203100203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135907604.

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

Adding to 113203100203 its reverse (302001302311), we get a palindrome (415204402514).

The spelling of 113203100203 in words is "one hundred thirteen billion, two hundred three million, one hundred thousand, two hundred three".