13113021203 has 4 divisors (see below), whose sum is σ = 13142226600. Its totient is φ = 13083815808.

The previous prime is 13113021199. The next prime is 13113021287. The reversal of 13113021203 is 30212031131.

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 13113021203 - 2² = 13113021199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13113021293) 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, 14602025 + ... + 14602922.

It is an arithmetic number, because the mean of its divisors is an integer number (3285556650).

Almost surely, 2^13113021203 is an apocalyptic number.

13113021203 is a deficient number, since it is larger than the sum of its proper divisors (29205397).

13113021203 is an equidigital number, since it uses as much as digits as its factorization.

13113021203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29205396.

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

Adding to 13113021203 its reverse (30212031131), we get a palindrome (43325052334).

The spelling of 13113021203 in words is "thirteen billion, one hundred thirteen million, twenty-one thousand, two hundred three".