2123124013 has 2 divisors, whose sum is σ = 2123124014. Its totient is φ = 2123124012.

The previous prime is 2123123987. The next prime is 2123124041. The reversal of 2123124013 is 3104213212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1907680329 + 215443684 = 43677^2 + 14678^2 .

It is a cyclic number.

It is not a de Polignac number, because 2123124013 - 2¹⁷ = 2122992941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2123124053) 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, 1061562006 + 1061562007.

It is an arithmetic number, because the mean of its divisors is an integer number (1061562007).

Almost surely, 2^2123124013 is an apocalyptic number.

It is an amenable number.

2123124013 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123124013 is an equidigital number, since it uses as much as digits as its factorization.

2123124013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2123124013 is about 46077.3698576644. The cubic root of 2123124013 is about 1285.2623552496.

Adding to 2123124013 its reverse (3104213212), we get a palindrome (5227337225).

The spelling of 2123124013 in words is "two billion, one hundred twenty-three million, one hundred twenty-four thousand, thirteen".