124123313 has 2 divisors, whose sum is σ = 124123314. Its totient is φ = 124123312.

The previous prime is 124123301. The next prime is 124123331. The reversal of 124123313 is 313321421.

Together with next prime (124123331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90402064 + 33721249 = 9508^2 + 5807^2 .

It is a cyclic number.

It is not a de Polignac number, because 124123313 - 2¹⁰ = 124122289 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (124123513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62061656 + 62061657.

It is an arithmetic number, because the mean of its divisors is an integer number (62061657).

Almost surely, 2^124123313 is an apocalyptic number.

It is an amenable number.

124123313 is a deficient number, since it is larger than the sum of its proper divisors (1).

124123313 is an equidigital number, since it uses as much as digits as its factorization.

124123313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 20.

The square root of 124123313 is about 11141.0642669361. The cubic root of 124123313 is about 498.8283405730.

Adding to 124123313 its reverse (313321421), we get a palindrome (437444734).

The spelling of 124123313 in words is "one hundred twenty-four million, one hundred twenty-three thousand, three hundred thirteen".