13112220203 has 4 divisors (see below), whose sum is σ = 13112453088. Its totient is φ = 13111987320.

The previous prime is 13112220161. The next prime is 13112220217. The reversal of 13112220203 is 30202221131.

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 13112220203 - 2²⁰ = 13111171627 is a prime.

It is a super-2 number, since 2×13112220203² (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 (13112220293) 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, 26525 + ... + 164097.

It is an arithmetic number, because the mean of its divisors is an integer number (3278113272).

Almost surely, 2^13112220203 is an apocalyptic number.

13112220203 is a deficient number, since it is larger than the sum of its proper divisors (232885).

13112220203 is an equidigital number, since it uses as much as digits as its factorization.

13112220203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232884.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13112220203 its reverse (30202221131), we get a palindrome (43314441334).

The spelling of 13112220203 in words is "thirteen billion, one hundred twelve million, two hundred twenty thousand, two hundred three".