13231433244 has 24 divisors (see below), whose sum is σ = 31626353808. Its totient is φ = 4302904960.

The previous prime is 13231433233. The next prime is 13231433249. The reversal of 13231433244 is 44233413231.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231433249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13446087 + ... + 13447070.

It is an arithmetic number, because the mean of its divisors is an integer number (1317764742).

Almost surely, 2^13231433244 is an apocalyptic number.

It is an amenable number.

13231433244 is an abundant number, since it is smaller than the sum of its proper divisors (18394920564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13231433244 is a wasteful number, since it uses less digits than its factorization.

13231433244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26893205 (or 26893203 counting only the distinct ones).

The product of its digits is 20736, while the sum is 30.

Adding to 13231433244 its reverse (44233413231), we get a palindrome (57464846475).

The spelling of 13231433244 in words is "thirteen billion, two hundred thirty-one million, four hundred thirty-three thousand, two hundred forty-four".