121101312232321 has 8 divisors (see below), whose sum is σ = 121445107512840. Its totient is φ = 120757521088512.

The previous prime is 121101312232319. The next prime is 121101312232337. The reversal of 121101312232321 is 123232213101121.

It can be written as a sum of positive squares in 4 ways, for example, as 8668690501696 + 112432621730625 = 2944264^2 + 10603425^2 .

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 121101312232321 - 2¹ = 121101312232319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121101312332321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63263761 + ... + 65149873.

It is an arithmetic number, because the mean of its divisors is an integer number (15180638439105).

Almost surely, 2^{121101312232321} is an apocalyptic number.

It is an amenable number.

121101312232321 is a deficient number, since it is larger than the sum of its proper divisors (343795280519).

121101312232321 is a wasteful number, since it uses less digits than its factorization.

121101312232321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068355.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 121101312232321 its reverse (123232213101121), we get a palindrome (244333525333442).

The spelling of 121101312232321 in words is "one hundred twenty-one trillion, one hundred one billion, three hundred twelve million, two hundred thirty-two thousand, three hundred twenty-one".