2173823503 has 2 divisors, whose sum is σ = 2173823504. Its totient is φ = 2173823502.

The previous prime is 2173823501. The next prime is 2173823569. The reversal of 2173823503 is 3053283712.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2173823503 - 2¹ = 2173823501 is a prime.

Together with 2173823501, 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 (2173823501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1086911751 + 1086911752.

It is an arithmetic number, because the mean of its divisors is an integer number (1086911752).

Almost surely, 2^2173823503 is an apocalyptic number.

2173823503 is a deficient number, since it is larger than the sum of its proper divisors (1).

2173823503 is an equidigital number, since it uses as much as digits as its factorization.

2173823503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 2173823503 is about 46624.2801874731. The cubic root of 2173823503 is about 1295.4125294849.

The spelling of 2173823503 in words is "two billion, one hundred seventy-three million, eight hundred twenty-three thousand, five hundred three".