12121330231213 has 16 divisors (see below), whose sum is σ = 14062528972800. Its totient is φ = 10232827945200.

The previous prime is 12121330231193. The next prime is 12121330231253. The reversal of 12121330231213 is 31213203312121.

It is not a de Polignac number, because 12121330231213 - 2¹⁷ = 12121330100141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121330231253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12076113 + ... + 13041286.

It is an arithmetic number, because the mean of its divisors is an integer number (878908060800).

Almost surely, 2^{12121330231213} is an apocalyptic number.

It is an amenable number.

12121330231213 is a deficient number, since it is larger than the sum of its proper divisors (1941198741587).

12121330231213 is an equidigital number, since it uses as much as digits as its factorization.

12121330231213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25118448.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 12121330231213 its reverse (31213203312121), we get a palindrome (43334533543334).

The spelling of 12121330231213 in words is "twelve trillion, one hundred twenty-one billion, three hundred thirty million, two hundred thirty-one thousand, two hundred thirteen".