117343653521 has 2 divisors, whose sum is σ = 117343653522. Its totient is φ = 117343653520.

The previous prime is 117343653509. The next prime is 117343653527. The reversal of 117343653521 is 125356343711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81773693521 + 35569960000 = 285961^2 + 188600^2 .

It is an emirp because it is prime and its reverse (125356343711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117343653521 - 2⁶ = 117343653457 is a prime.

It is not a weakly prime, because it can be changed into another prime (117343653527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58671826760 + 58671826761.

It is an arithmetic number, because the mean of its divisors is an integer number (58671826761).

Almost surely, 2^117343653521 is an apocalyptic number.

It is an amenable number.

117343653521 is a deficient number, since it is larger than the sum of its proper divisors (1).

117343653521 is an equidigital number, since it uses as much as digits as its factorization.

117343653521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 41.

The spelling of 117343653521 in words is "one hundred seventeen billion, three hundred forty-three million, six hundred fifty-three thousand, five hundred twenty-one".