3116888821 has 2 divisors, whose sum is σ = 3116888822. Its totient is φ = 3116888820.

The previous prime is 3116888809. The next prime is 3116888837. The reversal of 3116888821 is 1288886113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2925619921 + 191268900 = 54089^2 + 13830^2 .

It is an emirp because it is prime and its reverse (1288886113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3116888821 - 2²⁵ = 3083334389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3116888221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1558444410 + 1558444411.

It is an arithmetic number, because the mean of its divisors is an integer number (1558444411).

Almost surely, 2^3116888821 is an apocalyptic number.

It is an amenable number.

3116888821 is a deficient number, since it is larger than the sum of its proper divisors (1).

3116888821 is an equidigital number, since it uses as much as digits as its factorization.

3116888821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 147456, while the sum is 46.

The square root of 3116888821 is about 55829.1037094453. The cubic root of 3116888821 is about 1460.7428541260.

The spelling of 3116888821 in words is "three billion, one hundred sixteen million, eight hundred eighty-eight thousand, eight hundred twenty-one".