13231143031 has 4 divisors (see below), whose sum is σ = 13927519000. Its totient is φ = 12534767064.

The previous prime is 13231143011. The next prime is 13231143041. The reversal of 13231143031 is 13034113231.

13231143031 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 not a de Polignac number, because 13231143031 - 2¹¹ = 13231140983 is a prime.

It is a super-2 number, since 2×13231143031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13231142993 and 13231143011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231143011) 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, 348187956 + ... + 348187993.

It is an arithmetic number, because the mean of its divisors is an integer number (3481879750).

Almost surely, 2^13231143031 is an apocalyptic number.

13231143031 is a deficient number, since it is larger than the sum of its proper divisors (696375969).

13231143031 is an equidigital number, since it uses as much as digits as its factorization.

13231143031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696375968.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 13231143031 its reverse (13034113231), we get a palindrome (26265256262).

The spelling of 13231143031 in words is "thirteen billion, two hundred thirty-one million, one hundred forty-three thousand, thirty-one".