113203403213 has 4 divisors (see below), whose sum is σ = 113835824640. Its totient is φ = 112570981788.

The previous prime is 113203403197. The next prime is 113203403219. The reversal of 113203403213 is 312304302311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 113203403213 - 2⁴ = 113203403197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113203403219) 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, 316210445 + ... + 316210802.

It is an arithmetic number, because the mean of its divisors is an integer number (28458956160).

Almost surely, 2^113203403213 is an apocalyptic number.

It is an amenable number.

113203403213 is a deficient number, since it is larger than the sum of its proper divisors (632421427).

113203403213 is an equidigital number, since it uses as much as digits as its factorization.

113203403213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632421426.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 113203403213 its reverse (312304302311), we get a palindrome (425507705524).

The spelling of 113203403213 in words is "one hundred thirteen billion, two hundred three million, four hundred three thousand, two hundred thirteen".