431020243 has 8 divisors (see below), whose sum is σ = 446533200. Its totient is φ = 415550688.

The previous prime is 431020241. The next prime is 431020259. The reversal of 431020243 is 342020134.

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 431020243 - 2¹ = 431020241 is a prime.

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 431020243.

It is not an unprimeable number, because it can be changed into a prime (431020241) 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, 10080 + ... + 31042.

It is an arithmetic number, because the mean of its divisors is an integer number (55816650).

Almost surely, 2^431020243 is an apocalyptic number.

431020243 is a deficient number, since it is larger than the sum of its proper divisors (15512957).

431020243 is a wasteful number, since it uses less digits than its factorization.

431020243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21701.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 431020243 is about 20761.0270218022. The cubic root of 431020243 is about 755.3807082488.

Adding to 431020243 its reverse (342020134), we get a palindrome (773040377).

The spelling of 431020243 in words is "four hundred thirty-one million, twenty thousand, two hundred forty-three".