131343443443232 has 24 divisors (see below), whose sum is σ = 264084157564416. Its totient is φ = 64274451045952.

The previous prime is 131343443443229. The next prime is 131343443443237. The reversal of 131343443443232 is 232344344343131.

It is a super-2 number, since 2×131343443443232² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131343443443237) 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, 43664707088 + ... + 43664710095.

It is an arithmetic number, because the mean of its divisors is an integer number (11003506565184).

Almost surely, 2^{131343443443232} is an apocalyptic number.

It is an amenable number.

131343443443232 is an abundant number, since it is smaller than the sum of its proper divisors (132740714121184).

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

131343443443232 is an equidigital number, since it uses as much as digits as its factorization.

131343443443232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87329417240 (or 87329417232 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 44.

Adding to 131343443443232 its reverse (232344344343131), we get a palindrome (363687787786363).

The spelling of 131343443443232 in words is "one hundred thirty-one trillion, three hundred forty-three billion, four hundred forty-three million, four hundred forty-three thousand, two hundred thirty-two".