423323131244 has 24 divisors (see below), whose sum is σ = 797891115840. Its totient is φ = 195357907584.

The previous prime is 423323131193. The next prime is 423323131247. The reversal of 423323131244 is 442131323324.

It is a self number, because there is not a number n which added to its sum of digits gives 423323131244.

It is not an unprimeable number, because it can be changed into a prime (423323131247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12557 + ... + 920219.

It is an arithmetic number, because the mean of its divisors is an integer number (33245463160).

Almost surely, 2^423323131244 is an apocalyptic number.

It is an amenable number.

423323131244 is a deficient number, since it is larger than the sum of its proper divisors (374567984596).

423323131244 is a wasteful number, since it uses less digits than its factorization.

423323131244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916649 (or 916647 counting only the distinct ones).

The product of its digits is 41472, while the sum is 32.

Adding to 423323131244 its reverse (442131323324), we get a palindrome (865454454568).

The spelling of 423323131244 in words is "four hundred twenty-three billion, three hundred twenty-three million, one hundred thirty-one thousand, two hundred forty-four".