13203243431 has 32 divisors (see below), whose sum is σ = 16244981760. Its totient is φ = 10478167776.

The previous prime is 13203243421. The next prime is 13203243437. The reversal of 13203243431 is 13434230231.

13203243431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13203243431 is a prime.

It is a super-2 number, since 2×13203243431² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13203243431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13203243437) 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 31 ways as a sum of consecutive naturals, for example, 6643820 + ... + 6645806.

It is an arithmetic number, because the mean of its divisors is an integer number (507655680).

Almost surely, 2^13203243431 is an apocalyptic number.

13203243431 is a deficient number, since it is larger than the sum of its proper divisors (3041738329).

13203243431 is a wasteful number, since it uses less digits than its factorization.

13203243431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3123.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 13203243431 its reverse (13434230231), we get a palindrome (26637473662).

The spelling of 13203243431 in words is "thirteen billion, two hundred three million, two hundred forty-three thousand, four hundred thirty-one".