143231321023 has 8 divisors (see below), whose sum is σ = 166376429600. Its totient is φ = 120757085280.

The previous prime is 143231321017. The next prime is 143231321047. The reversal of 143231321023 is 320123132341.

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

It is a cyclic number.

It is not a de Polignac number, because 143231321023 - 2⁹ = 143231320511 is a prime.

It is a super-2 number, since 2×143231321023² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143231301023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167717748 + ... + 167718601.

It is an arithmetic number, because the mean of its divisors is an integer number (20797053700).

Almost surely, 2^143231321023 is an apocalyptic number.

143231321023 is a deficient number, since it is larger than the sum of its proper divisors (23145108577).

143231321023 is an equidigital number, since it uses as much as digits as its factorization.

143231321023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335436417.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 143231321023 its reverse (320123132341), we get a palindrome (463354453364).

The spelling of 143231321023 in words is "one hundred forty-three billion, two hundred thirty-one million, three hundred twenty-one thousand, twenty-three".