124443013 has 2 divisors, whose sum is σ = 124443014. Its totient is φ = 124443012.

The previous prime is 124442987. The next prime is 124443019. The reversal of 124443013 is 310344421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115928289 + 8514724 = 10767^2 + 2918^2 .

It is an emirp because it is prime and its reverse (310344421) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124443013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124443019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62221506 + 62221507.

It is an arithmetic number, because the mean of its divisors is an integer number (62221507).

Almost surely, 2^124443013 is an apocalyptic number.

It is an amenable number.

124443013 is a deficient number, since it is larger than the sum of its proper divisors (1).

124443013 is an equidigital number, since it uses as much as digits as its factorization.

124443013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 124443013 is about 11155.4028613941. The cubic root of 124443013 is about 499.2562448719.

Adding to 124443013 its reverse (310344421), we get a palindrome (434787434).

The spelling of 124443013 in words is "one hundred twenty-four million, four hundred forty-three thousand, thirteen".