121111202032321 has 8 divisors (see below), whose sum is σ = 124350703202880. Its totient is φ = 117890926388592.

The previous prime is 121111202032319. The next prime is 121111202032333. The reversal of 121111202032321 is 123230202111121.

It is a happy number.

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 121111202032321 - 2¹ = 121111202032319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121111202032292 and 121111202032301.

It is not an unprimeable number, because it can be changed into a prime (121111202032621) 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, 4806368941 + ... + 4806394138.

It is an arithmetic number, because the mean of its divisors is an integer number (15543837900360).

Almost surely, 2^{121111202032321} is an apocalyptic number.

It is an amenable number.

121111202032321 is a deficient number, since it is larger than the sum of its proper divisors (3239501170559).

121111202032321 is an equidigital number, since it uses as much as digits as its factorization.

121111202032321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9612763415.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 121111202032321 its reverse (123230202111121), we get a palindrome (244341404143442).

The spelling of 121111202032321 in words is "one hundred twenty-one trillion, one hundred eleven billion, two hundred two million, thirty-two thousand, three hundred twenty-one".