620143344313 has 4 divisors (see below), whose sum is σ = 630309628708. Its totient is φ = 609977059920.

The previous prime is 620143344307. The next prime is 620143344349. The reversal of 620143344313 is 313443341026.

620143344313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313443341026 = 2 ⋅156721670513.

It can be written as a sum of positive squares in 2 ways, for example, as 32165705104 + 587977639209 = 179348^2 + 766797^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620143344313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620143344113) 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, 5083142106 + ... + 5083142227.

It is an arithmetic number, because the mean of its divisors is an integer number (157577407177).

Almost surely, 2^620143344313 is an apocalyptic number.

It is an amenable number.

620143344313 is a deficient number, since it is larger than the sum of its proper divisors (10166284395).

620143344313 is a wasteful number, since it uses less digits than its factorization.

620143344313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10166284394.

The product of its (nonzero) digits is 62208, while the sum is 34.

Adding to 620143344313 its reverse (313443341026), we get a palindrome (933586685339).

The spelling of 620143344313 in words is "six hundred twenty billion, one hundred forty-three million, three hundred forty-four thousand, three hundred thirteen".