13230203231 has 4 divisors (see below), whose sum is σ = 15120232272. Its totient is φ = 11340174192.

The previous prime is 13230203191. The next prime is 13230203243.

13230203231 is nontrivially palindromic in base 10.

13230203231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13230203231 is a prime.

It is a super-2 number, since 2×13230203231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13230203731) 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 3 ways as a sum of consecutive naturals, for example, 945014510 + ... + 945014523.

It is an arithmetic number, because the mean of its divisors is an integer number (3780058068).

Almost surely, 2^13230203231 is an apocalyptic number.

13230203231 is a deficient number, since it is larger than the sum of its proper divisors (1890029041).

13230203231 is an equidigital number, since it uses as much as digits as its factorization.

13230203231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890029040.

The product of its (nonzero) digits is 648, while the sum is 20.

The spelling of 13230203231 in words is "thirteen billion, two hundred thirty million, two hundred three thousand, two hundred thirty-one".