2168728198103 has 2 divisors, whose sum is σ = 2168728198104. Its totient is φ = 2168728198102.

The previous prime is 2168728198001. The next prime is 2168728198129. The reversal of 2168728198103 is 3018918278612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2168728198103 - 2²⁸ = 2168459762647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2168722198103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1084364099051 + 1084364099052.

It is an arithmetic number, because the mean of its divisors is an integer number (1084364099052).

Almost surely, 2^{2168728198103} is an apocalyptic number.

2168728198103 is a deficient number, since it is larger than the sum of its proper divisors (1).

2168728198103 is an equidigital number, since it uses as much as digits as its factorization.

2168728198103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2322432, while the sum is 56.

The spelling of 2168728198103 in words is "two trillion, one hundred sixty-eight billion, seven hundred twenty-eight million, one hundred ninety-eight thousand, one hundred three".