12043321123 has 2 divisors, whose sum is σ = 12043321124. Its totient is φ = 12043321122.

The previous prime is 12043321117. The next prime is 12043321127. The reversal of 12043321123 is 32112334021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12043321123 - 2⁵ = 12043321091 is a prime.

It is a super-2 number, since 2×12043321123² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12043321094 and 12043321103.

It is not a weakly prime, because it can be changed into another prime (12043321127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6021660561 + 6021660562.

It is an arithmetic number, because the mean of its divisors is an integer number (6021660562).

Almost surely, 2^12043321123 is an apocalyptic number.

12043321123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12043321123 is an equidigital number, since it uses as much as digits as its factorization.

12043321123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 12043321123 its reverse (32112334021), we get a palindrome (44155655144).

The spelling of 12043321123 in words is "twelve billion, forty-three million, three hundred twenty-one thousand, one hundred twenty-three".