12013023120121 has 4 divisors (see below), whose sum is σ = 12165086704000. Its totient is φ = 11860959536244.

The previous prime is 12013023120103. The next prime is 12013023120209. The reversal of 12013023120121 is 12102132031021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12013023120121 - 2⁵ = 12013023120089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12013023123121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76031791821 + ... + 76031791978.

It is an arithmetic number, because the mean of its divisors is an integer number (3041271676000).

Almost surely, 2^{12013023120121} is an apocalyptic number.

It is an amenable number.

12013023120121 is a deficient number, since it is larger than the sum of its proper divisors (152063583879).

12013023120121 is an equidigital number, since it uses as much as digits as its factorization.

12013023120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152063583878.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12013023120121 its reverse (12102132031021), we get a palindrome (24115155151142).

The spelling of 12013023120121 in words is "twelve trillion, thirteen billion, twenty-three million, one hundred twenty thousand, one hundred twenty-one".