12122311023 has 24 divisors (see below), whose sum is σ = 19346097888. Its totient is φ = 7275451392.

The previous prime is 12122311009. The next prime is 12122311031. The reversal of 12122311023 is 32011322121.

It is not a de Polignac number, because 12122311023 - 2⁴ = 12122311007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12122310987 and 12122311005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122319023) 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 23 ways as a sum of consecutive naturals, for example, 1718890 + ... + 1725927.

It is an arithmetic number, because the mean of its divisors is an integer number (806087412).

Almost surely, 2^12122311023 is an apocalyptic number.

12122311023 is a deficient number, since it is larger than the sum of its proper divisors (7223786865).

12122311023 is a wasteful number, since it uses less digits than its factorization.

12122311023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3444863 (or 3444860 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12122311023 its reverse (32011322121), we get a palindrome (44133633144).

The spelling of 12122311023 in words is "twelve billion, one hundred twenty-two million, three hundred eleven thousand, twenty-three".