2120311177 has 2 divisors, whose sum is σ = 2120311178. Its totient is φ = 2120311176.

The previous prime is 2120311129. The next prime is 2120311183. The reversal of 2120311177 is 7711130212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1934152441 + 186158736 = 43979^2 + 13644^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120311177 is a prime.

It is a super-2 number, since 2×2120311177² = 8991438974622250658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2120311117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060155588 + 1060155589.

It is an arithmetic number, because the mean of its divisors is an integer number (1060155589).

Almost surely, 2^2120311177 is an apocalyptic number.

It is an amenable number.

2120311177 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120311177 is an equidigital number, since it uses as much as digits as its factorization.

2120311177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 588, while the sum is 25.

The square root of 2120311177 is about 46046.8367751792. The cubic root of 2120311177 is about 1284.6945080691.

Adding to 2120311177 its reverse (7711130212), we get a palindrome (9831441389).

The spelling of 2120311177 in words is "two billion, one hundred twenty million, three hundred eleven thousand, one hundred seventy-seven".