124705232917 has 2 divisors, whose sum is σ = 124705232918. Its totient is φ = 124705232916.

The previous prime is 124705232903. The next prime is 124705232959. The reversal of 124705232917 is 719232507421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122752830321 + 1952402596 = 350361^2 + 44186^2 .

It is an emirp because it is prime and its reverse (719232507421) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124705232917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124705232017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62352616458 + 62352616459.

It is an arithmetic number, because the mean of its divisors is an integer number (62352616459).

Almost surely, 2^124705232917 is an apocalyptic number.

It is an amenable number.

124705232917 is a deficient number, since it is larger than the sum of its proper divisors (1).

124705232917 is an equidigital number, since it uses as much as digits as its factorization.

124705232917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 124705232917 in words is "one hundred twenty-four billion, seven hundred five million, two hundred thirty-two thousand, nine hundred seventeen".