12340041023 has 2 divisors, whose sum is σ = 12340041024. Its totient is φ = 12340041022.

The previous prime is 12340041013. The next prime is 12340041047. The reversal of 12340041023 is 32014004321.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12340041023 is a prime.

It is a super-2 number, since 2×12340041023² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12340040986 and 12340041004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12340041013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6170020511 + 6170020512.

It is an arithmetic number, because the mean of its divisors is an integer number (6170020512).

Almost surely, 2^12340041023 is an apocalyptic number.

12340041023 is a deficient number, since it is larger than the sum of its proper divisors (1).

12340041023 is an equidigital number, since it uses as much as digits as its factorization.

12340041023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12340041023 its reverse (32014004321), we get a palindrome (44354045344).

The spelling of 12340041023 in words is "twelve billion, three hundred forty million, forty-one thousand, twenty-three".