102555444323081 has 2 divisors, whose sum is σ = 102555444323082. Its totient is φ = 102555444323080.

The previous prime is 102555444322997. The next prime is 102555444323149. The reversal of 102555444323081 is 180323444555201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102284581325056 + 270862998025 = 10113584^2 + 520445^2 .

It is a cyclic number.

It is not a de Polignac number, because 102555444323081 - 2³⁸ = 102280566416137 is a prime.

It is a super-2 number, since 2×102555444323081² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (102555444322081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51277722161540 + 51277722161541.

It is an arithmetic number, because the mean of its divisors is an integer number (51277722161541).

Almost surely, 2^{102555444323081} is an apocalyptic number.

It is an amenable number.

102555444323081 is a deficient number, since it is larger than the sum of its proper divisors (1).

102555444323081 is an equidigital number, since it uses as much as digits as its factorization.

102555444323081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304000, while the sum is 47.

Adding to 102555444323081 its reverse (180323444555201), we get a palindrome (282878888878282).

The spelling of 102555444323081 in words is "one hundred two trillion, five hundred fifty-five billion, four hundred forty-four million, three hundred twenty-three thousand, eighty-one".