1043440232423 has 8 divisors (see below), whose sum is σ = 1065656218368. Its totient is φ = 1021224876984.

The previous prime is 1043440232389. The next prime is 1043440232477. The reversal of 1043440232423 is 3242320443401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1043440232423 - 2⁸ = 1043440232167 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1043440232423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043440232623) 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, 4888940 + ... + 5097902.

It is an arithmetic number, because the mean of its divisors is an integer number (133207027296).

Almost surely, 2^{1043440232423} is an apocalyptic number.

1043440232423 is a deficient number, since it is larger than the sum of its proper divisors (22215985945).

1043440232423 is a wasteful number, since it uses less digits than its factorization.

1043440232423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315253.

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

Adding to 1043440232423 its reverse (3242320443401), we get a palindrome (4285760675824).

The spelling of 1043440232423 in words is "one trillion, forty-three billion, four hundred forty million, two hundred thirty-two thousand, four hundred twenty-three".