942123823 has 2 divisors, whose sum is σ = 942123824. Its totient is φ = 942123822.

The previous prime is 942123817. The next prime is 942123839. The reversal of 942123823 is 328321249.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (328321249) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 942123823 - 2¹³ = 942115631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (942123803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 471061911 + 471061912.

It is an arithmetic number, because the mean of its divisors is an integer number (471061912).

Almost surely, 2^942123823 is an apocalyptic number.

942123823 is a deficient number, since it is larger than the sum of its proper divisors (1).

942123823 is an equidigital number, since it uses as much as digits as its factorization.

942123823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 34.

The square root of 942123823 is about 30694.0356258345. The cubic root of 942123823 is about 980.3233082234.

The spelling of 942123823 in words is "nine hundred forty-two million, one hundred twenty-three thousand, eight hundred twenty-three".