2123112299977 has 2 divisors, whose sum is σ = 2123112299978. Its totient is φ = 2123112299976.

The previous prime is 2123112299941. The next prime is 2123112300007. The reversal of 2123112299977 is 7799922113212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1773400919481 + 349711380496 = 1331691^2 + 591364^2 .

It is a cyclic number.

It is not a de Polignac number, because 2123112299977 - 2⁷ = 2123112299849 is a prime.

It is not a weakly prime, because it can be changed into another prime (2123112299377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061556149988 + 1061556149989.

It is an arithmetic number, because the mean of its divisors is an integer number (1061556149989).

Almost surely, 2^{2123112299977} is an apocalyptic number.

It is an amenable number.

2123112299977 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123112299977 is an equidigital number, since it uses as much as digits as its factorization.

2123112299977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1714608, while the sum is 55.

The spelling of 2123112299977 in words is "two trillion, one hundred twenty-three billion, one hundred twelve million, two hundred ninety-nine thousand, nine hundred seventy-seven".