423212343442 has 16 divisors (see below), whose sum is σ = 726068878272. Its totient is φ = 181236217680.

The previous prime is 423212343413. The next prime is 423212343443. The reversal of 423212343442 is 244343212324.

It is a junction number, because it is equal to n+sod(n) for n = 423212343398 and 423212343407.

It is not an unprimeable number, because it can be changed into a prime (423212343443) 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 in 7 ways as a sum of consecutive naturals, for example, 11689693 + ... + 11725840.

It is an arithmetic number, because the mean of its divisors is an integer number (45379304892).

Almost surely, 2^423212343442 is an apocalyptic number.

423212343442 is a deficient number, since it is larger than the sum of its proper divisors (302856534830).

423212343442 is a wasteful number, since it uses less digits than its factorization.

423212343442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23416833.

The product of its digits is 110592, while the sum is 34.

Adding to 423212343442 its reverse (244343212324), we get a palindrome (667555555766).

The spelling of 423212343442 in words is "four hundred twenty-three billion, two hundred twelve million, three hundred forty-three thousand, four hundred forty-two".