131342441023441 has 4 divisors (see below), whose sum is σ = 131663571686500. Its totient is φ = 131021310360384.

The previous prime is 131342441023439. The next prime is 131342441023463. The reversal of 131342441023441 is 144320144243131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 115422341023441 + 15920100000000 = 10743479^2 + 3990000^2 .

It is a cyclic number.

It is not a de Polignac number, because 131342441023441 - 2¹ = 131342441023439 is a prime.

It is a super-2 number, since 2×131342441023441² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131342441023441.

It is not an unprimeable number, because it can be changed into a prime (131342441023141) 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, 160565330916 + ... + 160565331733.

It is an arithmetic number, because the mean of its divisors is an integer number (32915892921625).

Almost surely, 2^{131342441023441} is an apocalyptic number.

It is an amenable number.

131342441023441 is a deficient number, since it is larger than the sum of its proper divisors (321130663059).

131342441023441 is an equidigital number, since it uses as much as digits as its factorization.

131342441023441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321130663058.

The product of its (nonzero) digits is 110592, while the sum is 37.

Adding to 131342441023441 its reverse (144320144243131), we get a palindrome (275662585266572).

The spelling of 131342441023441 in words is "one hundred thirty-one trillion, three hundred forty-two billion, four hundred forty-one million, twenty-three thousand, four hundred forty-one".