2105343277 has 2 divisors, whose sum is σ = 2105343278. Its totient is φ = 2105343276.

The previous prime is 2105343187. The next prime is 2105343281. The reversal of 2105343277 is 7723435012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1601520361 + 503822916 = 40019^2 + 22446^2 .

It is a cyclic number.

It is not a de Polignac number, because 2105343277 - 2¹⁵ = 2105310509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2105343677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052671638 + 1052671639.

It is an arithmetic number, because the mean of its divisors is an integer number (1052671639).

Almost surely, 2^2105343277 is an apocalyptic number.

It is an amenable number.

2105343277 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105343277 is an equidigital number, since it uses as much as digits as its factorization.

2105343277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 2105343277 is about 45884.0198435141. The cubic root of 2105343277 is about 1281.6643545121.

Adding to 2105343277 its reverse (7723435012), we get a palindrome (9828778289).

The spelling of 2105343277 in words is "two billion, one hundred five million, three hundred forty-three thousand, two hundred seventy-seven".