121330321321 has 8 divisors (see below), whose sum is σ = 134530193088. Its totient is φ = 108492090000.

The previous prime is 121330321319. The next prime is 121330321351. The reversal of 121330321321 is 123123033121.

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 121330321321 - 2¹ = 121330321319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121330321292 and 121330321301.

It is not an unprimeable number, because it can be changed into a prime (121330321351) by changing a digit.

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, 90409405 + ... + 90410746.

It is an arithmetic number, because the mean of its divisors is an integer number (16816274136).

Almost surely, 2^121330321321 is an apocalyptic number.

121330321321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121330321321 is a deficient number, since it is larger than the sum of its proper divisors (13199871767).

121330321321 is a wasteful number, since it uses less digits than its factorization.

121330321321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180820223.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 121330321321 its reverse (123123033121), we get a palindrome (244453354442).

The spelling of 121330321321 in words is "one hundred twenty-one billion, three hundred thirty million, three hundred twenty-one thousand, three hundred twenty-one".