213143431443 has 8 divisors (see below), whose sum is σ = 285465643008. Its totient is φ = 141458420424.

The previous prime is 213143431427. The next prime is 213143431481. The reversal of 213143431443 is 344134341312.

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

It is not a de Polignac number, because 213143431443 - 2⁴ = 213143431427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213143431483) 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, 159299355 + ... + 159300692.

It is an arithmetic number, because the mean of its divisors is an integer number (35683205376).

Almost surely, 2^213143431443 is an apocalyptic number.

213143431443 is a deficient number, since it is larger than the sum of its proper divisors (72322211565).

213143431443 is a wasteful number, since it uses less digits than its factorization.

213143431443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318600273.

The product of its digits is 41472, while the sum is 33.

Adding to 213143431443 its reverse (344134341312), we get a palindrome (557277772755).

The spelling of 213143431443 in words is "two hundred thirteen billion, one hundred forty-three million, four hundred thirty-one thousand, four hundred forty-three".