12040331123 has 2 divisors, whose sum is σ = 12040331124. Its totient is φ = 12040331122.

The previous prime is 12040331119. The next prime is 12040331167. The reversal of 12040331123 is 32113304021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12040331123 - 2² = 12040331119 is a prime.

It is a super-2 number, since 2×12040331123² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12040331095 and 12040331104.

It is not a weakly prime, because it can be changed into another prime (12040331183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6020165561 + 6020165562.

It is an arithmetic number, because the mean of its divisors is an integer number (6020165562).

Almost surely, 2^12040331123 is an apocalyptic number.

12040331123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12040331123 is an equidigital number, since it uses as much as digits as its factorization.

12040331123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12040331123 its reverse (32113304021), we get a palindrome (44153635144).

The spelling of 12040331123 in words is "twelve billion, forty million, three hundred thirty-one thousand, one hundred twenty-three".