423433412191 has 2 divisors, whose sum is σ = 423433412192. Its totient is φ = 423433412190.

The previous prime is 423433412179. The next prime is 423433412279. The reversal of 423433412191 is 191214334324.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423433412191 - 2⁷ = 423433412063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 423433412191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423433412131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211716706095 + 211716706096.

It is an arithmetic number, because the mean of its divisors is an integer number (211716706096).

Almost surely, 2^423433412191 is an apocalyptic number.

423433412191 is a deficient number, since it is larger than the sum of its proper divisors (1).

423433412191 is an equidigital number, since it uses as much as digits as its factorization.

423433412191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 37.

The spelling of 423433412191 in words is "four hundred twenty-three billion, four hundred thirty-three million, four hundred twelve thousand, one hundred ninety-one".