121110012321 has 8 divisors (see below), whose sum is σ = 166689049344. Its totient is φ = 78135491760.

The previous prime is 121110012293. The next prime is 121110012337. The reversal of 121110012321 is 123210011121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121110012321 - 2⁹ = 121110011809 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121110012321.

It is not an unprimeable number, because it can be changed into a prime (121110012371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 651129006 + ... + 651129191.

It is an arithmetic number, because the mean of its divisors is an integer number (20836131168).

Almost surely, 2^121110012321 is an apocalyptic number.

It is an amenable number.

121110012321 is a deficient number, since it is larger than the sum of its proper divisors (45579037023).

121110012321 is a wasteful number, since it uses less digits than its factorization.

121110012321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302258231.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 121110012321 its reverse (123210011121), we get a palindrome (244320023442).

The spelling of 121110012321 in words is "one hundred twenty-one billion, one hundred ten million, twelve thousand, three hundred twenty-one".