108367243899521 has 2 divisors, whose sum is σ = 108367243899522. Its totient is φ = 108367243899520.

The previous prime is 108367243899511. The next prime is 108367243899569. The reversal of 108367243899521 is 125998342763801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72332303425600 + 36034940473921 = 8504840^2 + 6002911^2 .

It is a cyclic number.

It is not a de Polignac number, because 108367243899521 - 2³⁰ = 108366170157697 is a prime.

It is not a weakly prime, because it can be changed into another prime (108367243899511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54183621949760 + 54183621949761.

It is an arithmetic number, because the mean of its divisors is an integer number (54183621949761).

It is a 1-persistent number, because it is pandigital, but 2⋅108367243899521 = 216734487799042 is not.

Almost surely, 2^{108367243899521} is an apocalyptic number.

It is an amenable number.

108367243899521 is a deficient number, since it is larger than the sum of its proper divisors (1).

108367243899521 is an equidigital number, since it uses as much as digits as its factorization.

108367243899521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 156764160, while the sum is 68.

The spelling of 108367243899521 in words is "one hundred eight trillion, three hundred sixty-seven billion, two hundred forty-three million, eight hundred ninety-nine thousand, five hundred twenty-one".