13120305203 has 16 divisors (see below), whose sum is σ = 13941344160. Its totient is φ = 12304836096.

The previous prime is 13120305197. The next prime is 13120305221. The reversal of 13120305203 is 30250302131.

13120305203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13120305203 - 2²² = 13116110899 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (13120305223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7869776 + ... + 7871442.

It is an arithmetic number, because the mean of its divisors is an integer number (871334010).

Almost surely, 2^13120305203 is an apocalyptic number.

13120305203 is a deficient number, since it is larger than the sum of its proper divisors (821038957).

13120305203 is a wasteful number, since it uses less digits than its factorization.

13120305203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3046.

The product of its (nonzero) digits is 540, while the sum is 20.

Adding to 13120305203 its reverse (30250302131), we get a palindrome (43370607334).

The spelling of 13120305203 in words is "thirteen billion, one hundred twenty million, three hundred five thousand, two hundred three".