13120030513 has 4 divisors (see below), whose sum is σ = 13120259620. Its totient is φ = 13119801408.

The previous prime is 13120030501. The next prime is 13120030607. The reversal of 13120030513 is 31503002131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 11285450289 + 1834580224 = 106233^2 + 42832^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13120030513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13120030013) 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, 54973 + ... + 171061.

It is an arithmetic number, because the mean of its divisors is an integer number (3280064905).

Almost surely, 2^13120030513 is an apocalyptic number.

It is an amenable number.

13120030513 is a deficient number, since it is larger than the sum of its proper divisors (229107).

13120030513 is a wasteful number, since it uses less digits than its factorization.

13120030513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229106.

The product of its (nonzero) digits is 270, while the sum is 19.

Adding to 13120030513 its reverse (31503002131), we get a palindrome (44623032644).

The spelling of 13120030513 in words is "thirteen billion, one hundred twenty million, thirty thousand, five hundred thirteen".