13230203121 has 40 divisors (see below), whose sum is σ = 20285473824. Its totient is φ = 8588099520.

The previous prime is 13230203113. The next prime is 13230203123. The reversal of 13230203121 is 12130203231.

It is not a de Polignac number, because 13230203121 - 2³ = 13230203113 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13230203094 and 13230203103.

It is not an unprimeable number, because it can be changed into a prime (13230203123) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1812946 + ... + 1820228.

Almost surely, 2^13230203121 is an apocalyptic number.

It is an amenable number.

13230203121 is a deficient number, since it is larger than the sum of its proper divisors (7055270703).

13230203121 is an equidigital number, since it uses as much as digits as its factorization.

13230203121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7883 (or 7874 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13230203121 its reverse (12130203231), we get a palindrome (25360406352).

The spelling of 13230203121 in words is "thirteen billion, two hundred thirty million, two hundred three thousand, one hundred twenty-one".