121415530563 has 12 divisors (see below), whose sum is σ = 175575720528. Its totient is φ = 80852426160.

The previous prime is 121415530559. The next prime is 121415530583. The reversal of 121415530563 is 365035514121.

121415530563 is a `hidden beast` number, since 1 + 2 + 1 + 41 + 5 + 53 + 0 + 563 = 666.

It is not a de Polignac number, because 121415530563 - 2² = 121415530559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121415530543) 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 in 11 ways as a sum of consecutive naturals, for example, 7596648 + ... + 7612613.

It is an arithmetic number, because the mean of its divisors is an integer number (14631310044).

Almost surely, 2^121415530563 is an apocalyptic number.

121415530563 is a deficient number, since it is larger than the sum of its proper divisors (54160189965).

121415530563 is a wasteful number, since it uses less digits than its factorization.

121415530563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15210154 (or 15210151 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 121415530563 in words is "one hundred twenty-one billion, four hundred fifteen million, five hundred thirty thousand, five hundred sixty-three".