5113431313 has 2 divisors, whose sum is σ = 5113431314. Its totient is φ = 5113431312.

The previous prime is 5113431311. The next prime is 5113431347. The reversal of 5113431313 is 3131343115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5113394064 + 37249 = 71508^2 + 193^2 .

It is a cyclic number.

It is not a de Polignac number, because 5113431313 - 2¹ = 5113431311 is a prime.

It is a super-2 number, since 2×5113431313² = 52294359585537807938, which contains 22 as substring.

Together with 5113431311, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (5113431311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2556715656 + 2556715657.

It is an arithmetic number, because the mean of its divisors is an integer number (2556715657).

Almost surely, 2^5113431313 is an apocalyptic number.

It is an amenable number.

5113431313 is a deficient number, since it is larger than the sum of its proper divisors (1).

5113431313 is an equidigital number, since it uses as much as digits as its factorization.

5113431313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620, while the sum is 25.

The square root of 5113431313 is about 71508.2604529015. The cubic root of 5113431313 is about 1722.8103633035.

Adding to 5113431313 its reverse (3131343115), we get a palindrome (8244774428).

It can be divided in two parts, 511343 and 1313, that added together give a square (512656 = 716²).

The spelling of 5113431313 in words is "five billion, one hundred thirteen million, four hundred thirty-one thousand, three hundred thirteen".