121201321003321 has 4 divisors (see below), whose sum is σ = 130524499542052. Its totient is φ = 111878142464592.

The previous prime is 121201321003307. The next prime is 121201321003331. The reversal of 121201321003321 is 123300123102121.

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 43001593153600 + 78199727849721 = 6557560^2 + 8843061^2 .

It is a cyclic number.

It is not a de Polignac number, because 121201321003321 - 2⁵ = 121201321003289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121201321003292 and 121201321003301.

It is not an unprimeable number, because it can be changed into a prime (121201321003331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4661589269346 + ... + 4661589269371.

It is an arithmetic number, because the mean of its divisors is an integer number (32631124885513).

Almost surely, 2^{121201321003321} is an apocalyptic number.

It is an amenable number.

121201321003321 is a deficient number, since it is larger than the sum of its proper divisors (9323178538731).

121201321003321 is an equidigital number, since it uses as much as digits as its factorization.

121201321003321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9323178538730.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 121201321003321 its reverse (123300123102121), we get a palindrome (244501444105442).

The spelling of 121201321003321 in words is "one hundred twenty-one trillion, two hundred one billion, three hundred twenty-one million, three thousand, three hundred twenty-one".