12120121223023 has 16 divisors (see below), whose sum is σ = 13678541811360. Its totient is φ = 10637835980800.

The previous prime is 12120121223017. The next prime is 12120121223027. The reversal of 12120121223023 is 32032212102121.

It is a cyclic number.

It is not a de Polignac number, because 12120121223023 - 2⁵ = 12120121222991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12120121222985 and 12120121223003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120121223027) 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, 5757063 + ... + 7575223.

It is an arithmetic number, because the mean of its divisors is an integer number (854908863210).

Almost surely, 2^{12120121223023} is an apocalyptic number.

12120121223023 is a deficient number, since it is larger than the sum of its proper divisors (1558420588337).

12120121223023 is a wasteful number, since it uses less digits than its factorization.

12120121223023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839098.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12120121223023 its reverse (32032212102121), we get a palindrome (44152333325144).

The spelling of 12120121223023 in words is "twelve trillion, one hundred twenty billion, one hundred twenty-one million, two hundred twenty-three thousand, twenty-three".