2173323724361 has 2 divisors, whose sum is σ = 2173323724362. Its totient is φ = 2173323724360.

The previous prime is 2173323724283. The next prime is 2173323724423. The reversal of 2173323724361 is 1634273233712.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2003728011961 + 169595712400 = 1415531^2 + 411820^2 .

It is a cyclic number.

It is not a de Polignac number, because 2173323724361 - 2³⁰ = 2172249982537 is a prime.

It is not a weakly prime, because it can be changed into another prime (2173323724261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1086661862180 + 1086661862181.

It is an arithmetic number, because the mean of its divisors is an integer number (1086661862181).

Almost surely, 2^{2173323724361} is an apocalyptic number.

It is an amenable number.

2173323724361 is a deficient number, since it is larger than the sum of its proper divisors (1).

2173323724361 is an equidigital number, since it uses as much as digits as its factorization.

2173323724361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 44.

The spelling of 2173323724361 in words is "two trillion, one hundred seventy-three billion, three hundred twenty-three million, seven hundred twenty-four thousand, three hundred sixty-one".