12400041023 has 2 divisors, whose sum is σ = 12400041024. Its totient is φ = 12400041022.

The previous prime is 12400041019. The next prime is 12400041029. The reversal of 12400041023 is 32014000421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12400041023 - 2² = 12400041019 is a prime.

It is a super-2 number, since 2×12400041023² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12400040992 and 12400041010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12400041029) 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 as a sum of consecutive naturals, namely, 6200020511 + 6200020512.

It is an arithmetic number, because the mean of its divisors is an integer number (6200020512).

Almost surely, 2^12400041023 is an apocalyptic number.

12400041023 is a deficient number, since it is larger than the sum of its proper divisors (1).

12400041023 is an equidigital number, since it uses as much as digits as its factorization.

12400041023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 12400041023 its reverse (32014000421), we get a palindrome (44414041444).

The spelling of 12400041023 in words is "twelve billion, four hundred million, forty-one thousand, twenty-three".