3116541821 has 2 divisors, whose sum is σ = 3116541822. Its totient is φ = 3116541820.

The previous prime is 3116541787. The next prime is 3116541829. The reversal of 3116541821 is 1281456113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2773180921 + 343360900 = 52661^2 + 18530^2 .

It is a cyclic number.

It is not a de Polignac number, because 3116541821 - 2¹⁴ = 3116525437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3116541829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1558270910 + 1558270911.

It is an arithmetic number, because the mean of its divisors is an integer number (1558270911).

Almost surely, 2^3116541821 is an apocalyptic number.

It is an amenable number.

3116541821 is a deficient number, since it is larger than the sum of its proper divisors (1).

3116541821 is an equidigital number, since it uses as much as digits as its factorization.

3116541821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 32.

The square root of 3116541821 is about 55825.9959248377. The cubic root of 3116541821 is about 1460.6886444519.

Adding to 3116541821 its reverse (1281456113), we get a palindrome (4397997934).

The spelling of 3116541821 in words is "three billion, one hundred sixteen million, five hundred forty-one thousand, eight hundred twenty-one".