131342441041421 has 4 divisors (see below), whose sum is σ = 139068466985052. Its totient is φ = 123616415097792.

The previous prime is 131342441041417. The next prime is 131342441041457. The reversal of 131342441041421 is 124140144243131.

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 43965002233321 + 87377438808100 = 6630611^2 + 9347590^2 .

It is a cyclic number.

It is not a de Polignac number, because 131342441041421 - 2² = 131342441041417 is a prime.

It is a super-3 number, since 3×131342441041421³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131342441041121) 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, 3863012971790 + ... + 3863012971823.

It is an arithmetic number, because the mean of its divisors is an integer number (34767116746263).

Almost surely, 2^{131342441041421} is an apocalyptic number.

It is an amenable number.

131342441041421 is a deficient number, since it is larger than the sum of its proper divisors (7726025943631).

131342441041421 is an equidigital number, since it uses as much as digits as its factorization.

131342441041421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7726025943630.

The product of its (nonzero) digits is 36864, while the sum is 35.

Adding to 131342441041421 its reverse (124140144243131), we get a palindrome (255482585284552).

The spelling of 131342441041421 in words is "one hundred thirty-one trillion, three hundred forty-two billion, four hundred forty-one million, forty-one thousand, four hundred twenty-one".