2820752311313 has 4 divisors (see below), whose sum is σ = 2820872504868. Its totient is φ = 2820632117760.

The previous prime is 2820752311283. The next prime is 2820752311337. The reversal of 2820752311313 is 3131132570282.

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 2467264987009 + 353487324304 = 1570753^2 + 594548^2 .

It is a cyclic number.

It is not a de Polignac number, because 2820752311313 - 2¹⁶ = 2820752245777 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 (2820752311393) 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, 60061568 + ... + 60108513.

It is an arithmetic number, because the mean of its divisors is an integer number (705218126217).

Almost surely, 2^{2820752311313} is an apocalyptic number.

It is an amenable number.

2820752311313 is a deficient number, since it is larger than the sum of its proper divisors (120193555).

2820752311313 is a wasteful number, since it uses less digits than its factorization.

2820752311313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120193554.

The product of its (nonzero) digits is 60480, while the sum is 38.

Adding to 2820752311313 its reverse (3131132570282), we get a palindrome (5951884881595).

The spelling of 2820752311313 in words is "two trillion, eight hundred twenty billion, seven hundred fifty-two million, three hundred eleven thousand, three hundred thirteen".