123034013 has 2 divisors, whose sum is σ = 123034014. Its totient is φ = 123034012.

The previous prime is 123034007. The next prime is 123034027. The reversal of 123034013 is 310430321.

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., 122699929 + 334084 = 11077^2 + 578^2 .

It is an emirp because it is prime and its reverse (310430321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123034013 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 = 123033982 and 123034000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123034033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61517006 + 61517007.

It is an arithmetic number, because the mean of its divisors is an integer number (61517007).

Almost surely, 2^123034013 is an apocalyptic number.

It is an amenable number.

123034013 is a deficient number, since it is larger than the sum of its proper divisors (1).

123034013 is an equidigital number, since it uses as much as digits as its factorization.

123034013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 123034013 is about 11092.0698248794. The cubic root of 123034013 is about 497.3648200521.

Adding to 123034013 its reverse (310430321), we get a palindrome (433464334).

The spelling of 123034013 in words is "one hundred twenty-three million, thirty-four thousand, thirteen".