13430203313 has 4 divisors (see below), whose sum is σ = 13432173348. Its totient is φ = 13428233280.

The previous prime is 13430203307. The next prime is 13430203327. The reversal of 13430203313 is 31330203431.

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 3685946944 + 9744256369 = 60712^2 + 98713^2 .

It is a cyclic number.

It is not a de Polignac number, because 13430203313 - 2⁶ = 13430203249 is a prime.

It is a super-2 number, since 2×13430203313² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13430203393) 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, 974756 + ... + 988437.

It is an arithmetic number, because the mean of its divisors is an integer number (3358043337).

Almost surely, 2^13430203313 is an apocalyptic number.

It is an amenable number.

13430203313 is a deficient number, since it is larger than the sum of its proper divisors (1970035).

13430203313 is an equidigital number, since it uses as much as digits as its factorization.

13430203313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970034.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 13430203313 its reverse (31330203431), we get a palindrome (44760406744).

The spelling of 13430203313 in words is "thirteen billion, four hundred thirty million, two hundred three thousand, three hundred thirteen".