2173080823 has 2 divisors, whose sum is σ = 2173080824. Its totient is φ = 2173080822.

The previous prime is 2173080821. The next prime is 2173080827. The reversal of 2173080823 is 3280803712.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2173080823 - 2¹ = 2173080821 is a prime.

Together with 2173080821, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2173080821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1086540411 + 1086540412.

It is an arithmetic number, because the mean of its divisors is an integer number (1086540412).

Almost surely, 2^2173080823 is an apocalyptic number.

2173080823 is a deficient number, since it is larger than the sum of its proper divisors (1).

2173080823 is an equidigital number, since it uses as much as digits as its factorization.

2173080823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 2173080823 is about 46616.3149873518. The cubic root of 2173080823 is about 1295.2649881351.

The spelling of 2173080823 in words is "two billion, one hundred seventy-three million, eighty thousand, eight hundred twenty-three".