121321030001 has 4 divisors (see below), whose sum is σ = 121337447652. Its totient is φ = 121304612352.

The previous prime is 121321029959. The next prime is 121321030073. The reversal of 121321030001 is 100030123121.

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

It can be written as a sum of positive squares in 2 ways, for example, as 50873253601 + 70447776400 = 225551^2 + 265420^2 .

It is a cyclic number.

It is not a de Polignac number, because 121321030001 - 2¹⁸ = 121320767857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121321020001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8197736 + ... + 8212521.

It is an arithmetic number, because the mean of its divisors is an integer number (30334361913).

Almost surely, 2^121321030001 is an apocalyptic number.

It is an amenable number.

121321030001 is a deficient number, since it is larger than the sum of its proper divisors (16417651).

121321030001 is an equidigital number, since it uses as much as digits as its factorization.

121321030001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16417650.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 121321030001 its reverse (100030123121), we get a palindrome (221351153122).

The spelling of 121321030001 in words is "one hundred twenty-one billion, three hundred twenty-one million, thirty thousand, one".