121321301210999 has 8 divisors (see below), whose sum is σ = 121349225537760. Its totient is φ = 121293380052000.

The previous prime is 121321301210987. The next prime is 121321301211031. The reversal of 121321301210999 is 999012103123121.

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 121321301210999 - 2⁴ = 121321301210983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121321301210399) 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, 76684049 + ... + 78250149.

It is an arithmetic number, because the mean of its divisors is an integer number (15168653192220).

Almost surely, 2^{121321301210999} is an apocalyptic number.

121321301210999 is a deficient number, since it is larger than the sum of its proper divisors (27924326761).

121321301210999 is a wasteful number, since it uses less digits than its factorization.

121321301210999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583881.

The product of its (nonzero) digits is 52488, while the sum is 44.

The spelling of 121321301210999 in words is "one hundred twenty-one trillion, three hundred twenty-one billion, three hundred one million, two hundred ten thousand, nine hundred ninety-nine".