123342420319 has 2 divisors, whose sum is σ = 123342420320. Its totient is φ = 123342420318.

The previous prime is 123342420307. The next prime is 123342420401. The reversal of 123342420319 is 913024243321.

It is a weak prime.

It is an emirp because it is prime and its reverse (913024243321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123342420319 - 2¹⁷ = 123342289247 is a prime.

It is a super-2 number, since 2×123342420319² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123342424319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61671210159 + 61671210160.

It is an arithmetic number, because the mean of its divisors is an integer number (61671210160).

Almost surely, 2^123342420319 is an apocalyptic number.

123342420319 is a deficient number, since it is larger than the sum of its proper divisors (1).

123342420319 is an equidigital number, since it uses as much as digits as its factorization.

123342420319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 34.

The spelling of 123342420319 in words is "one hundred twenty-three billion, three hundred forty-two million, four hundred twenty thousand, three hundred nineteen".