121203242302121 has 16 divisors (see below), whose sum is σ = 143310238074240. Its totient is φ = 100295096469120.

The previous prime is 121203242302117. The next prime is 121203242302123.

121203242302121 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 121203242302121 - 2² = 121203242302117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121203242302123) 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, 30992516 + ... + 34683461.

It is an arithmetic number, because the mean of its divisors is an integer number (8956889879640).

Almost surely, 2^{121203242302121} is an apocalyptic number.

It is an amenable number.

121203242302121 is a deficient number, since it is larger than the sum of its proper divisors (22106995772119).

121203242302121 is an equidigital number, since it uses as much as digits as its factorization.

121203242302121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65685104.

The product of its (nonzero) digits is 2304, while the sum is 26.

The spelling of 121203242302121 in words is "one hundred twenty-one trillion, two hundred three billion, two hundred forty-two million, three hundred two thousand, one hundred twenty-one".