143212230431 has 4 divisors (see below), whose sum is σ = 143248665864. Its totient is φ = 143175795000.

The previous prime is 143212230391. The next prime is 143212230443. The reversal of 143212230431 is 134032212341.

143212230431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134032212341 = 431 ⋅310979611.

It is a cyclic number.

It is not a de Polignac number, because 143212230431 - 2¹⁸ = 143211968287 is a prime.

It is a super-2 number, since 2×143212230431² (a number of 23 digits) contains 22 as substring.

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 143212230431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143212230461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18211820 + ... + 18219681.

It is an arithmetic number, because the mean of its divisors is an integer number (35812166466).

Almost surely, 2^143212230431 is an apocalyptic number.

143212230431 is a deficient number, since it is larger than the sum of its proper divisors (36435433).

143212230431 is an equidigital number, since it uses as much as digits as its factorization.

143212230431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36435432.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 143212230431 its reverse (134032212341), we get a palindrome (277244442772).

The spelling of 143212230431 in words is "one hundred forty-three billion, two hundred twelve million, two hundred thirty thousand, four hundred thirty-one".