131443241321 has 32 divisors (see below), whose sum is σ = 156628857600. Its totient is φ = 110221343232.

The previous prime is 131443241311. The next prime is 131443241353. The reversal of 131443241321 is 123142344131.

It is not a de Polignac number, because 131443241321 - 2⁶ = 131443241257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131443241311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6406946 + ... + 6427428.

It is an arithmetic number, because the mean of its divisors is an integer number (4894651800).

Almost surely, 2^131443241321 is an apocalyptic number.

It is an amenable number.

131443241321 is a deficient number, since it is larger than the sum of its proper divisors (25185616279).

131443241321 is an equidigital number, since it uses as much as digits as its factorization.

131443241321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20910 (or 20896 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

Adding to 131443241321 its reverse (123142344131), we get a palindrome (254585585452).

The spelling of 131443241321 in words is "one hundred thirty-one billion, four hundred forty-three million, two hundred forty-one thousand, three hundred twenty-one".