3203111302313 has 4 divisors (see below), whose sum is σ = 3449504479428. Its totient is φ = 2956718125200.

The previous prime is 3203111302267. The next prime is 3203111302373. The reversal of 3203111302313 is 3132031113023.

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 290259105049 + 2912852197264 = 538757^2 + 1706708^2 .

It is a cyclic number.

It is not a de Polignac number, because 3203111302313 - 2²⁴ = 3203094525097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3203111302373) 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, 123196588538 + ... + 123196588563.

It is an arithmetic number, because the mean of its divisors is an integer number (862376119857).

Almost surely, 2^{3203111302313} is an apocalyptic number.

It is an amenable number.

3203111302313 is a deficient number, since it is larger than the sum of its proper divisors (246393177115).

3203111302313 is a wasteful number, since it uses less digits than its factorization.

3203111302313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246393177114.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 3203111302313 its reverse (3132031113023), we get a palindrome (6335142415336).

The spelling of 3203111302313 in words is "three trillion, two hundred three billion, one hundred eleven million, three hundred two thousand, three hundred thirteen".