13231311441 has 4 divisors (see below), whose sum is σ = 17641748592. Its totient is φ = 8820874292.

The previous prime is 13231311427. The next prime is 13231311473. The reversal of 13231311441 is 14411313231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13231311441 - 2⁶ = 13231311377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13231311421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2205218571 + ... + 2205218576.

It is an arithmetic number, because the mean of its divisors is an integer number (4410437148).

Almost surely, 2^13231311441 is an apocalyptic number.

It is an amenable number.

13231311441 is a deficient number, since it is larger than the sum of its proper divisors (4410437151).

13231311441 is an equidigital number, since it uses as much as digits as its factorization.

13231311441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4410437150.

The product of its digits is 864, while the sum is 24.

Adding to 13231311441 its reverse (14411313231), we get a palindrome (27642624672).

The spelling of 13231311441 in words is "thirteen billion, two hundred thirty-one million, three hundred eleven thousand, four hundred forty-one".