423342111971 has 2 divisors, whose sum is σ = 423342111972. Its totient is φ = 423342111970.

The previous prime is 423342111943. The next prime is 423342112057. The reversal of 423342111971 is 179111243324.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423342111971 is a prime.

It is not a weakly prime, because it can be changed into another prime (423342117971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211671055985 + 211671055986.

It is an arithmetic number, because the mean of its divisors is an integer number (211671055986).

Almost surely, 2^423342111971 is an apocalyptic number.

423342111971 is a deficient number, since it is larger than the sum of its proper divisors (1).

423342111971 is an equidigital number, since it uses as much as digits as its factorization.

423342111971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The spelling of 423342111971 in words is "four hundred twenty-three billion, three hundred forty-two million, one hundred eleven thousand, nine hundred seventy-one".