2123020768177 has 2 divisors, whose sum is σ = 2123020768178. Its totient is φ = 2123020768176.

The previous prime is 2123020768157. The next prime is 2123020768181. The reversal of 2123020768177 is 7718670203212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1113550452001 + 1009470316176 = 1055249^2 + 1004724^2 .

It is a cyclic number.

It is not a de Polignac number, because 2123020768177 - 2²³ = 2123012379569 is a prime.

It is a super-2 number, since 2×2123020768177² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2123020768157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061510384088 + 1061510384089.

It is an arithmetic number, because the mean of its divisors is an integer number (1061510384089).

Almost surely, 2^{2123020768177} is an apocalyptic number.

It is an amenable number.

2123020768177 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123020768177 is an equidigital number, since it uses as much as digits as its factorization.

2123020768177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 395136, while the sum is 46.

The spelling of 2123020768177 in words is "two trillion, one hundred twenty-three billion, twenty million, seven hundred sixty-eight thousand, one hundred seventy-seven".