20113234177 has 2 divisors, whose sum is σ = 20113234178. Its totient is φ = 20113234176.

The previous prime is 20113234159. The next prime is 20113234213. The reversal of 20113234177 is 77143231102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19759643761 + 353590416 = 140569^2 + 18804^2 .

It is a cyclic number.

It is not a de Polignac number, because 20113234177 - 2¹¹ = 20113232129 is a prime.

It is not a weakly prime, because it can be changed into another prime (20113234117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056617088 + 10056617089.

It is an arithmetic number, because the mean of its divisors is an integer number (10056617089).

Almost surely, 2^20113234177 is an apocalyptic number.

It is an amenable number.

20113234177 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113234177 is an equidigital number, since it uses as much as digits as its factorization.

20113234177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 31.

Adding to 20113234177 its reverse (77143231102), we get a palindrome (97256465279).

The spelling of 20113234177 in words is "twenty billion, one hundred thirteen million, two hundred thirty-four thousand, one hundred seventy-seven".