124120313 has 2 divisors, whose sum is σ = 124120314. Its totient is φ = 124120312.

The previous prime is 124120309. The next prime is 124120333. The reversal of 124120313 is 313021421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123032464 + 1087849 = 11092^2 + 1043^2 .

It is a cyclic number.

It is not a de Polignac number, because 124120313 - 2² = 124120309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 124120291 and 124120300.

It is not a weakly prime, because it can be changed into another prime (124120303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62060156 + 62060157.

It is an arithmetic number, because the mean of its divisors is an integer number (62060157).

Almost surely, 2^124120313 is an apocalyptic number.

It is an amenable number.

124120313 is a deficient number, since it is larger than the sum of its proper divisors (1).

124120313 is an equidigital number, since it uses as much as digits as its factorization.

124120313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 124120313 is about 11140.9296290749. The cubic root of 124120313 is about 498.8243217279.

Adding to 124120313 its reverse (313021421), we get a palindrome (437141734).

The spelling of 124120313 in words is "one hundred twenty-four million, one hundred twenty thousand, three hundred thirteen".