123417202423 has 2 divisors, whose sum is σ = 123417202424. Its totient is φ = 123417202422.

The previous prime is 123417202367. The next prime is 123417202439. The reversal of 123417202423 is 324202714321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123417202423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123417232423) 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, 61708601211 + 61708601212.

It is an arithmetic number, because the mean of its divisors is an integer number (61708601212).

Almost surely, 2^123417202423 is an apocalyptic number.

123417202423 is a deficient number, since it is larger than the sum of its proper divisors (1).

123417202423 is an equidigital number, since it uses as much as digits as its factorization.

123417202423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 31.

Adding to 123417202423 its reverse (324202714321), we get a palindrome (447619916744).

The spelling of 123417202423 in words is "one hundred twenty-three billion, four hundred seventeen million, two hundred two thousand, four hundred twenty-three".