23431444143321 has 8 divisors (see below), whose sum is σ = 31242073823680. Its totient is φ = 15620888612592.

The previous prime is 23431444143221. The next prime is 23431444143389. The reversal of 23431444143321 is 12334144413432.

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

It is not a de Polignac number, because 23431444143321 - 2²⁷ = 23431309925593 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 23431444143321.

It is not an unprimeable number, because it can be changed into a prime (23431444143221) 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, 17795830 + ... + 19067103.

It is an arithmetic number, because the mean of its divisors is an integer number (3905259227960).

Almost surely, 2^{23431444143321} is an apocalyptic number.

It is an amenable number.

23431444143321 is a deficient number, since it is larger than the sum of its proper divisors (7810629680359).

23431444143321 is a wasteful number, since it uses less digits than its factorization.

23431444143321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37074815.

The product of its digits is 331776, while the sum is 39.

Adding to 23431444143321 its reverse (12334144413432), we get a palindrome (35765588556753).

The spelling of 23431444143321 in words is "twenty-three trillion, four hundred thirty-one billion, four hundred forty-four million, one hundred forty-three thousand, three hundred twenty-one".