121730180683307 has 4 divisors (see below), whose sum is σ = 139120206495216. Its totient is φ = 104340154871400.

The previous prime is 121730180683301. The next prime is 121730180683379. The reversal of 121730180683307 is 703386081037121.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 121730180683307 - 2³⁸ = 121455302776363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121730180683301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8695012905944 + ... + 8695012905957.

It is an arithmetic number, because the mean of its divisors is an integer number (34780051623804).

Almost surely, 2^{121730180683307} is an apocalyptic number.

121730180683307 is a deficient number, since it is larger than the sum of its proper divisors (17390025811909).

121730180683307 is an equidigital number, since it uses as much as digits as its factorization.

121730180683307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17390025811908.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 121730180683307 in words is "one hundred twenty-one trillion, seven hundred thirty billion, one hundred eighty million, six hundred eighty-three thousand, three hundred seven".