13123030013 has 4 divisors (see below), whose sum is σ = 13124320188. Its totient is φ = 13121739840.

The previous prime is 13123030009. The next prime is 13123030021. The reversal of 13123030013 is 31003032131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31003032131 = 6659 ⋅4655809.

It can be written as a sum of positive squares in 2 ways, for example, as 1011367204 + 12111662809 = 31802^2 + 110053^2 .

It is a cyclic number.

It is not a de Polignac number, because 13123030013 - 2² = 13123030009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13123029973 and 13123030000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123030003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 629708 + ... + 650213.

It is an arithmetic number, because the mean of its divisors is an integer number (3281080047).

Almost surely, 2^13123030013 is an apocalyptic number.

It is an amenable number.

13123030013 is a deficient number, since it is larger than the sum of its proper divisors (1290175).

13123030013 is a wasteful number, since it uses less digits than its factorization.

13123030013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290174.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 13123030013 its reverse (31003032131), we get a palindrome (44126062144).

The spelling of 13123030013 in words is "thirteen billion, one hundred twenty-three million, thirty thousand, thirteen".