13123030313 has 4 divisors (see below), whose sum is σ = 13125197268. Its totient is φ = 13120863360.

The previous prime is 13123030309. The next prime is 13123030339. The reversal of 13123030313 is 31303032131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8737014784 + 4386015529 = 93472^2 + 66227^2 .

It is a cyclic number.

It is not a de Polignac number, because 13123030313 - 2² = 13123030309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13123030343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1074368 + ... + 1086513.

It is an arithmetic number, because the mean of its divisors is an integer number (3281299317).

Almost surely, 2^13123030313 is an apocalyptic number.

It is an amenable number.

13123030313 is a deficient number, since it is larger than the sum of its proper divisors (2166955).

13123030313 is an equidigital number, since it uses as much as digits as its factorization.

13123030313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2166954.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 13123030313 its reverse (31303032131), we get a palindrome (44426062444).

The spelling of 13123030313 in words is "thirteen billion, one hundred twenty-three million, thirty thousand, three hundred thirteen".