131343002242321 has 4 divisors (see below), whose sum is σ = 131474740460212. Its totient is φ = 131211264024432.

The previous prime is 131343002242307. The next prime is 131343002242379. The reversal of 131343002242321 is 123242200343131.

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 101814254993025 + 29528747249296 = 10090305^2 + 5434036^2 .

It is a cyclic number.

It is not a de Polignac number, because 131343002242321 - 2³⁵ = 131308642503953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131343002242381) 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, 65869107450 + ... + 65869109443.

It is an arithmetic number, because the mean of its divisors is an integer number (32868685115053).

Almost surely, 2^{131343002242321} is an apocalyptic number.

It is an amenable number.

131343002242321 is a deficient number, since it is larger than the sum of its proper divisors (131738217891).

131343002242321 is an equidigital number, since it uses as much as digits as its factorization.

131343002242321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131738217890.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 131343002242321 its reverse (123242200343131), we get a palindrome (254585202585452).

The spelling of 131343002242321 in words is "one hundred thirty-one trillion, three hundred forty-three billion, two million, two hundred forty-two thousand, three hundred twenty-one".