121321312320201 has 16 divisors (see below), whose sum is σ = 194600601216000. Its totient is φ = 65677702909968.

The previous prime is 121321312320167. The next prime is 121321312320211. The reversal of 121321312320201 is 102023213123121.

It is not a de Polignac number, because 121321312320201 - 2⁶ = 121321312320137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121321312320211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152031719301 + ... + 152031720098.

It is an arithmetic number, because the mean of its divisors is an integer number (12162537576000).

Almost surely, 2^{121321312320201} is an apocalyptic number.

It is an amenable number.

121321312320201 is a deficient number, since it is larger than the sum of its proper divisors (73279288895799).

121321312320201 is a wasteful number, since it uses less digits than its factorization.

121321312320201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304063439428.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 121321312320201 its reverse (102023213123121), we get a palindrome (223344525443322).

The spelling of 121321312320201 in words is "one hundred twenty-one trillion, three hundred twenty-one billion, three hundred twelve million, three hundred twenty thousand, two hundred one".