423123450044 has 24 divisors (see below), whose sum is σ = 742669579008. Its totient is φ = 210932431920.

The previous prime is 423123450017. The next prime is 423123450049. The reversal of 423123450044 is 440054321324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423123450049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6194759 + ... + 6262689.

It is an arithmetic number, because the mean of its divisors is an integer number (30944565792).

Almost surely, 2^423123450044 is an apocalyptic number.

It is an amenable number.

423123450044 is a deficient number, since it is larger than the sum of its proper divisors (319546128964).

423123450044 is a wasteful number, since it uses less digits than its factorization.

423123450044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72545 (or 72543 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 423123450044 its reverse (440054321324), we get a palindrome (863177771368).

The spelling of 423123450044 in words is "four hundred twenty-three billion, one hundred twenty-three million, four hundred fifty thousand, forty-four".