143124233526421 has 12 divisors (see below), whose sum is σ = 166491927135660. Its totient is φ = 122677566802560.

The previous prime is 143124233526389. The next prime is 143124233526431. The reversal of 143124233526421 is 124625332421341.

It can be written as a sum of positive squares in 2 ways, for example, as 3477426825796 + 139646806700625 = 1864786^2 + 11817225^2 .

It is not a de Polignac number, because 143124233526421 - 2⁵ = 143124233526389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143124233526431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14144695 + ... + 22052683.

It is an arithmetic number, because the mean of its divisors is an integer number (13874327261305).

Almost surely, 2^{143124233526421} is an apocalyptic number.

It is an amenable number.

143124233526421 is a deficient number, since it is larger than the sum of its proper divisors (23367693609239).

143124233526421 is an equidigital number, since it uses as much as digits as its factorization.

143124233526421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8277364 (or 8277357 counting only the distinct ones).

The product of its digits is 829440, while the sum is 43.

Adding to 143124233526421 its reverse (124625332421341), we get a palindrome (267749565947762).

The spelling of 143124233526421 in words is "one hundred forty-three trillion, one hundred twenty-four billion, two hundred thirty-three million, five hundred twenty-six thousand, four hundred twenty-one".