121328601305 has 8 divisors (see below), whose sum is σ = 145860493632. Its totient is φ = 96885433008.

The previous prime is 121328601263. The next prime is 121328601343. The reversal of 121328601305 is 503106823121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121328601305 - 2³⁰ = 120254859481 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22177997 + ... + 22183466.

It is an arithmetic number, because the mean of its divisors is an integer number (18232561704).

Almost surely, 2^121328601305 is an apocalyptic number.

It is an amenable number.

121328601305 is a deficient number, since it is larger than the sum of its proper divisors (24531892327).

121328601305 is an equidigital number, since it uses as much as digits as its factorization.

121328601305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44362015.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 121328601305 in words is "one hundred twenty-one billion, three hundred twenty-eight million, six hundred one thousand, three hundred five".