423130044434 has 4 divisors (see below), whose sum is σ = 634695066654. Its totient is φ = 211565022216.

The previous prime is 423130044427. The next prime is 423130044487. The reversal of 423130044434 is 434440031324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 418411041409 + 4719003025 = 646847^2 + 68695^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 423130044434.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105782511107 + ... + 105782511110.

Almost surely, 2^423130044434 is an apocalyptic number.

423130044434 is a deficient number, since it is larger than the sum of its proper divisors (211565022220).

423130044434 is a wasteful number, since it uses less digits than its factorization.

423130044434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211565022219.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 423130044434 its reverse (434440031324), we get a palindrome (857570075758).

The spelling of 423130044434 in words is "four hundred twenty-three billion, one hundred thirty million, forty-four thousand, four hundred thirty-four".