123354216019 has 2 divisors, whose sum is σ = 123354216020. Its totient is φ = 123354216018.

The previous prime is 123354215987. The next prime is 123354216061. The reversal of 123354216019 is 910612453321.

It is a weak prime.

It is an emirp because it is prime and its reverse (910612453321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123354216019 - 2⁵ = 123354215987 is a prime.

It is a super-2 number, since 2×123354216019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123354216319) 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, 61677108009 + 61677108010.

It is an arithmetic number, because the mean of its divisors is an integer number (61677108010).

Almost surely, 2^123354216019 is an apocalyptic number.

123354216019 is a deficient number, since it is larger than the sum of its proper divisors (1).

123354216019 is an equidigital number, since it uses as much as digits as its factorization.

123354216019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 123354216019 in words is "one hundred twenty-three billion, three hundred fifty-four million, two hundred sixteen thousand, nineteen".