123271417439 has 2 divisors, whose sum is σ = 123271417440. Its totient is φ = 123271417438.

The previous prime is 123271417429. The next prime is 123271417487. The reversal of 123271417439 is 934714172321.

It is a weak prime.

It is an emirp because it is prime and its reverse (934714172321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123271417439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123271417439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123271417429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61635708719 + 61635708720.

It is an arithmetic number, because the mean of its divisors is an integer number (61635708720).

Almost surely, 2^123271417439 is an apocalyptic number.

123271417439 is a deficient number, since it is larger than the sum of its proper divisors (1).

123271417439 is an equidigital number, since it uses as much as digits as its factorization.

123271417439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 44.

The spelling of 123271417439 in words is "one hundred twenty-three billion, two hundred seventy-one million, four hundred seventeen thousand, four hundred thirty-nine".