13113120203 has 12 divisors (see below), whose sum is σ = 13723314360. Its totient is φ = 12529013376.

The previous prime is 13113120151. The next prime is 13113120217. The reversal of 13113120203 is 30202131131.

It is not a de Polignac number, because 13113120203 - 2³² = 8818152907 is a prime.

It is a super-2 number, since 2×13113120203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13113120103) 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, 478100 + ... + 504782.

It is an arithmetic number, because the mean of its divisors is an integer number (1143609530).

Almost surely, 2^13113120203 is an apocalyptic number.

13113120203 is a deficient number, since it is larger than the sum of its proper divisors (610194157).

13113120203 is an equidigital number, since it uses as much as digits as its factorization.

13113120203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27658 (or 27635 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 13113120203 its reverse (30202131131), we get a palindrome (43315251334).

The spelling of 13113120203 in words is "thirteen billion, one hundred thirteen million, one hundred twenty thousand, two hundred three".