121093639559 has 2 divisors, whose sum is σ = 121093639560. Its totient is φ = 121093639558.

The previous prime is 121093639483. The next prime is 121093639561. The reversal of 121093639559 is 955936390121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121093639559 - 2³⁶ = 52374162823 is a prime.

Together with 121093639561, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121093639559.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121093659559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60546819779 + 60546819780.

It is an arithmetic number, because the mean of its divisors is an integer number (60546819780).

Almost surely, 2^121093639559 is an apocalyptic number.

121093639559 is a deficient number, since it is larger than the sum of its proper divisors (1).

121093639559 is an equidigital number, since it uses as much as digits as its factorization.

121093639559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1968300, while the sum is 53.

The spelling of 121093639559 in words is "one hundred twenty-one billion, ninety-three million, six hundred thirty-nine thousand, five hundred fifty-nine".