423432420031 has 2 divisors, whose sum is σ = 423432420032. Its totient is φ = 423432420030.

The previous prime is 423432420023. The next prime is 423432420053. The reversal of 423432420031 is 130024234324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423432420031 - 2³ = 423432420023 is a prime.

It is a super-2 number, since 2×423432420031² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423432420071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211716210015 + 211716210016.

It is an arithmetic number, because the mean of its divisors is an integer number (211716210016).

Almost surely, 2^423432420031 is an apocalyptic number.

423432420031 is a deficient number, since it is larger than the sum of its proper divisors (1).

423432420031 is an equidigital number, since it uses as much as digits as its factorization.

423432420031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 423432420031 its reverse (130024234324), we get a palindrome (553456654355).

The spelling of 423432420031 in words is "four hundred twenty-three billion, four hundred thirty-two million, four hundred twenty thousand, thirty-one".