10340440423 has 2 divisors, whose sum is σ = 10340440424. Its totient is φ = 10340440422.

The previous prime is 10340440403. The next prime is 10340440447. The reversal of 10340440423 is 32404404301.

10340440423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10340440423 - 2⁵ = 10340440391 is a prime.

It is a super-2 number, since 2×10340440423² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10340440403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5170220211 + 5170220212.

It is an arithmetic number, because the mean of its divisors is an integer number (5170220212).

Almost surely, 2^10340440423 is an apocalyptic number.

10340440423 is a deficient number, since it is larger than the sum of its proper divisors (1).

10340440423 is an equidigital number, since it uses as much as digits as its factorization.

10340440423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 10340440423 its reverse (32404404301), we get a palindrome (42744844724).

The spelling of 10340440423 in words is "ten billion, three hundred forty million, four hundred forty thousand, four hundred twenty-three".