9973123 has 2 divisors, whose sum is σ = 9973124. Its totient is φ = 9973122.

The previous prime is 9973121. The next prime is 9973133. The reversal of 9973123 is 3213799.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9973123 - 2¹ = 9973121 is a prime.

Together with 9973121, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9973121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4986561 + 4986562.

It is an arithmetic number, because the mean of its divisors is an integer number (4986562).

Almost surely, 2^9973123 is an apocalyptic number.

9973123 is a deficient number, since it is larger than the sum of its proper divisors (1).

9973123 is an equidigital number, since it uses as much as digits as its factorization.

9973123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10206, while the sum is 34.

The square root of 9973123 is about 3158.0251740605. The cubic root of 9973123 is about 215.2502800178.

The spelling of 9973123 in words is "nine million, nine hundred seventy-three thousand, one hundred twenty-three".