423243233242403 has 32 divisors (see below), whose sum is σ = 519818460480000. Its totient is φ = 343512557428320.

The previous prime is 423243233242397. The next prime is 423243233242513. The reversal of 423243233242403 is 304242332342324.

It is a happy number.

It is not a de Polignac number, because 423243233242403 - 2¹⁶ = 423243233176867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423243233142403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3511268 + ... + 29305553.

It is an arithmetic number, because the mean of its divisors is an integer number (16244326890000).

Almost surely, 2^{423243233242403} is an apocalyptic number.

423243233242403 is a deficient number, since it is larger than the sum of its proper divisors (96575227237597).

423243233242403 is a wasteful number, since it uses less digits than its factorization.

423243233242403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32818840 (or 32818826 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 41.

Adding to 423243233242403 its reverse (304242332342324), we get a palindrome (727485565584727).

The spelling of 423243233242403 in words is "four hundred twenty-three trillion, two hundred forty-three billion, two hundred thirty-three million, two hundred forty-two thousand, four hundred three".