131618721063743 has 2 divisors, whose sum is σ = 131618721063744. Its totient is φ = 131618721063742.

The previous prime is 131618721063701. The next prime is 131618721063751. The reversal of 131618721063743 is 347360127816131.

It is a strong prime.

It is an emirp because it is prime and its reverse (347360127816131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131618721063743 - 2¹⁶ = 131618720998207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131618741063743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65809360531871 + 65809360531872.

It is an arithmetic number, because the mean of its divisors is an integer number (65809360531872).

Almost surely, 2^{131618721063743} is an apocalyptic number.

131618721063743 is a deficient number, since it is larger than the sum of its proper divisors (1).

131618721063743 is an equidigital number, since it uses as much as digits as its factorization.

131618721063743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3048192, while the sum is 53.

Adding to 131618721063743 its reverse (347360127816131), we get a palindrome (478978848879874).

The spelling of 131618721063743 in words is "one hundred thirty-one trillion, six hundred eighteen billion, seven hundred twenty-one million, sixty-three thousand, seven hundred forty-three".