121559630313 has 16 divisors (see below), whose sum is σ = 187214832576. Its totient is φ = 69338826240.

The previous prime is 121559630273. The next prime is 121559630323. The reversal of 121559630313 is 313036955121.

It is a de Polignac number, because none of the positive numbers 2^k-121559630313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121559630323) 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 in 15 ways as a sum of consecutive naturals, for example, 108341356 + ... + 108342477.

It is an arithmetic number, because the mean of its divisors is an integer number (11700927036).

Almost surely, 2^121559630313 is an apocalyptic number.

It is an amenable number.

121559630313 is a deficient number, since it is larger than the sum of its proper divisors (65655202263).

121559630313 is a wasteful number, since it uses less digits than its factorization.

121559630313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216683864.

The product of its (nonzero) digits is 72900, while the sum is 39.

The spelling of 121559630313 in words is "one hundred twenty-one billion, five hundred fifty-nine million, six hundred thirty thousand, three hundred thirteen".