431577221143 has 4 divisors (see below), whose sum is σ = 431842482280. Its totient is φ = 431311960008.

The previous prime is 431577221113. The next prime is 431577221189. The reversal of 431577221143 is 341122775134.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 431577221143 - 2¹³ = 431577212951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 431577221096 and 431577221105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431577221113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132628128 + ... + 132631381.

It is an arithmetic number, because the mean of its divisors is an integer number (107960620570).

Almost surely, 2^431577221143 is an apocalyptic number.

431577221143 is a deficient number, since it is larger than the sum of its proper divisors (265261137).

431577221143 is a wasteful number, since it uses less digits than its factorization.

431577221143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265261136.

The product of its digits is 141120, while the sum is 40.

Adding to 431577221143 its reverse (341122775134), we get a palindrome (772699996277).

The spelling of 431577221143 in words is "four hundred thirty-one billion, five hundred seventy-seven million, two hundred twenty-one thousand, one hundred forty-three".