12121020331023 has 8 divisors (see below), whose sum is σ = 16192380329136. Its totient is φ = 8065170276800.

The previous prime is 12121020330977. The next prime is 12121020331051. The reversal of 12121020331023 is 32013302012121.

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 12121020331023 - 2²⁰ = 12121019282447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121020331423) 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, 3877484148 + ... + 3877487273.

It is an arithmetic number, because the mean of its divisors is an integer number (2024047541142).

Almost surely, 2^{12121020331023} is an apocalyptic number.

12121020331023 is a deficient number, since it is larger than the sum of its proper divisors (4071359998113).

12121020331023 is an equidigital number, since it uses as much as digits as its factorization.

12121020331023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7754971945.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12121020331023 its reverse (32013302012121), we get a palindrome (44134322343144).

The spelling of 12121020331023 in words is "twelve trillion, one hundred twenty-one billion, twenty million, three hundred thirty-one thousand, twenty-three".