123419399 has 2 divisors, whose sum is σ = 123419400. Its totient is φ = 123419398.

The previous prime is 123419369. The next prime is 123419407. The reversal of 123419399 is 993914321.

It is a strong prime.

It is an emirp because it is prime and its reverse (993914321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123419399 - 2²⁰ = 122370823 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123419369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61709699 + 61709700.

It is an arithmetic number, because the mean of its divisors is an integer number (61709700).

Almost surely, 2^123419399 is an apocalyptic number.

123419399 is a deficient number, since it is larger than the sum of its proper divisors (1).

123419399 is an equidigital number, since it uses as much as digits as its factorization.

123419399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 41.

The square root of 123419399 is about 11109.4283831348. The cubic root of 123419399 is about 497.8835862253.

The spelling of 123419399 in words is "one hundred twenty-three million, four hundred nineteen thousand, three hundred ninety-nine".