13220120203 has 4 divisors (see below), whose sum is σ = 13356410200. Its totient is φ = 13083830208.

The previous prime is 13220120197. The next prime is 13220120213. The reversal of 13220120203 is 30202102231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30202102231 = 7 ⋅4314586033.

It is a cyclic number.

It is not a de Polignac number, because 13220120203 - 2⁹ = 13220119691 is a prime.

It is a super-2 number, since 2×13220120203² (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 (13220120213) 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, 68144853 + ... + 68145046.

It is an arithmetic number, because the mean of its divisors is an integer number (3339102550).

Almost surely, 2^13220120203 is an apocalyptic number.

13220120203 is a deficient number, since it is larger than the sum of its proper divisors (136289997).

13220120203 is an equidigital number, since it uses as much as digits as its factorization.

13220120203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136289996.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 13220120203 its reverse (30202102231), we get a palindrome (43422222434).

The spelling of 13220120203 in words is "thirteen billion, two hundred twenty million, one hundred twenty thousand, two hundred three".