423100191971 has 2 divisors, whose sum is σ = 423100191972. Its totient is φ = 423100191970.

The previous prime is 423100191961. The next prime is 423100191977. The reversal of 423100191971 is 179191001324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423100191971 - 2¹⁴ = 423100175587 is a prime.

It is not a weakly prime, because it can be changed into another prime (423100191977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211550095985 + 211550095986.

It is an arithmetic number, because the mean of its divisors is an integer number (211550095986).

Almost surely, 2^423100191971 is an apocalyptic number.

423100191971 is a deficient number, since it is larger than the sum of its proper divisors (1).

423100191971 is an equidigital number, since it uses as much as digits as its factorization.

423100191971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 38.

The spelling of 423100191971 in words is "four hundred twenty-three billion, one hundred million, one hundred ninety-one thousand, nine hundred seventy-one".