121200242302321 has 16 divisors (see below), whose sum is σ = 149171414402304. Its totient is φ = 95893485153984.

The previous prime is 121200242302309. The next prime is 121200242302351. The reversal of 121200242302321 is 123203242002121.

It is not a de Polignac number, because 121200242302321 - 2⁵ = 121200242302289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121200242302351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1143421 + ... + 15611146.

It is an arithmetic number, because the mean of its divisors is an integer number (9323213400144).

Almost surely, 2^{121200242302321} is an apocalyptic number.

It is an amenable number.

121200242302321 is a deficient number, since it is larger than the sum of its proper divisors (27971172099983).

121200242302321 is a wasteful number, since it uses less digits than its factorization.

121200242302321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16834080.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 121200242302321 its reverse (123203242002121), we get a palindrome (244403484304442).

The spelling of 121200242302321 in words is "one hundred twenty-one trillion, two hundred billion, two hundred forty-two million, three hundred two thousand, three hundred twenty-one".