121584535730 has 16 divisors (see below), whose sum is σ = 250116759360. Its totient is φ = 41686126512.

The previous prime is 121584535693. The next prime is 121584535739. The reversal of 121584535730 is 37535485121.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121584535739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 868460900 + ... + 868461039.

It is an arithmetic number, because the mean of its divisors is an integer number (15632297460).

Almost surely, 2^121584535730 is an apocalyptic number.

121584535730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121584535730 is an abundant number, since it is smaller than the sum of its proper divisors (128532223630).

121584535730 is a wasteful number, since it uses less digits than its factorization.

121584535730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736921953.

The product of its (nonzero) digits is 504000, while the sum is 44.

The spelling of 121584535730 in words is "one hundred twenty-one billion, five hundred eighty-four million, five hundred thirty-five thousand, seven hundred thirty".