113213315503 has 4 divisors (see below), whose sum is σ = 113218722760. Its totient is φ = 113207908248.

The previous prime is 113213315477. The next prime is 113213315519. The reversal of 113213315503 is 305513312311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113213315503 - 2¹⁷ = 113213184431 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 (113213315533) 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, 2672100 + ... + 2714137.

It is an arithmetic number, because the mean of its divisors is an integer number (28304680690).

Almost surely, 2^113213315503 is an apocalyptic number.

113213315503 is a deficient number, since it is larger than the sum of its proper divisors (5407257).

113213315503 is an equidigital number, since it uses as much as digits as its factorization.

113213315503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5407256.

The product of its (nonzero) digits is 4050, while the sum is 28.

Adding to 113213315503 its reverse (305513312311), we get a palindrome (418726627814).

The spelling of 113213315503 in words is "one hundred thirteen billion, two hundred thirteen million, three hundred fifteen thousand, five hundred three".