131233143044321 has 2 divisors, whose sum is σ = 131233143044322. Its totient is φ = 131233143044320.

The previous prime is 131233143044281. The next prime is 131233143044351. The reversal of 131233143044321 is 123440341332131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127172172460096 + 4060970584225 = 11277064^2 + 2015185^2 .

It is a cyclic number.

It is not a de Polignac number, because 131233143044321 - 2⁴⁶ = 60864398866657 is a prime.

It is not a weakly prime, because it can be changed into another prime (131233143044351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65616571522160 + 65616571522161.

It is an arithmetic number, because the mean of its divisors is an integer number (65616571522161).

Almost surely, 2^{131233143044321} is an apocalyptic number.

It is an amenable number.

131233143044321 is a deficient number, since it is larger than the sum of its proper divisors (1).

131233143044321 is an equidigital number, since it uses as much as digits as its factorization.

131233143044321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 35.

Adding to 131233143044321 its reverse (123440341332131), we get a palindrome (254673484376452).

The spelling of 131233143044321 in words is "one hundred thirty-one trillion, two hundred thirty-three billion, one hundred forty-three million, forty-four thousand, three hundred twenty-one".