340123551240019 has 2 divisors, whose sum is σ = 340123551240020. Its totient is φ = 340123551240018.

The previous prime is 340123551240001. The next prime is 340123551240029. The reversal of 340123551240019 is 910042155321043.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340123551240019 is a prime.

It is a super-2 number, since 2×340123551240019² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (340123551240029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170061775620009 + 170061775620010.

It is an arithmetic number, because the mean of its divisors is an integer number (170061775620010).

Almost surely, 2^{340123551240019} is an apocalyptic number.

340123551240019 is a deficient number, since it is larger than the sum of its proper divisors (1).

340123551240019 is an equidigital number, since it uses as much as digits as its factorization.

340123551240019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 340123551240019 in words is "three hundred forty trillion, one hundred twenty-three billion, five hundred fifty-one million, two hundred forty thousand, nineteen".