124738744813 has 2 divisors, whose sum is σ = 124738744814. Its totient is φ = 124738744812.

The previous prime is 124738744771. The next prime is 124738744909. The reversal of 124738744813 is 318447837421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101635352809 + 23103392004 = 318803^2 + 151998^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124738744813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124738742813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62369372406 + 62369372407.

It is an arithmetic number, because the mean of its divisors is an integer number (62369372407).

Almost surely, 2^124738744813 is an apocalyptic number.

It is an amenable number.

124738744813 is a deficient number, since it is larger than the sum of its proper divisors (1).

124738744813 is an equidigital number, since it uses as much as digits as its factorization.

124738744813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3612672, while the sum is 52.

The spelling of 124738744813 in words is "one hundred twenty-four billion, seven hundred thirty-eight million, seven hundred forty-four thousand, eight hundred thirteen".