340442444123 has 2 divisors, whose sum is σ = 340442444124. Its totient is φ = 340442444122.

The previous prime is 340442444093. The next prime is 340442444129. The reversal of 340442444123 is 321444244043.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 340442444123 - 2¹⁶ = 340442378587 is a prime.

It is not a weakly prime, because it can be changed into another prime (340442444129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170221222061 + 170221222062.

It is an arithmetic number, because the mean of its divisors is an integer number (170221222062).

Almost surely, 2^340442444123 is an apocalyptic number.

340442444123 is a deficient number, since it is larger than the sum of its proper divisors (1).

340442444123 is an equidigital number, since it uses as much as digits as its factorization.

340442444123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 340442444123 its reverse (321444244043), we get a palindrome (661886688166).

The spelling of 340442444123 in words is "three hundred forty billion, four hundred forty-two million, four hundred forty-four thousand, one hundred twenty-three".