431116503 has 8 divisors (see below), whose sum is σ = 574924416. Its totient is φ = 287359800.

The previous prime is 431116501. The next prime is 431116507. The reversal of 431116503 is 305611134.

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

It is not a de Polignac number, because 431116503 - 2¹ = 431116501 is a prime.

It is a super-2 number, since 2×431116503² = 371722878317898018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431116501) 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, 16288 + ... + 33578.

It is an arithmetic number, because the mean of its divisors is an integer number (71865552).

Almost surely, 2^431116503 is an apocalyptic number.

431116503 is a deficient number, since it is larger than the sum of its proper divisors (143807913).

431116503 is a wasteful number, since it uses less digits than its factorization.

431116503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25605.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 431116503 is about 20763.3451784629. The cubic root of 431116503 is about 755.4369372665.

Adding to 431116503 its reverse (305611134), we get a palindrome (736727637).

The spelling of 431116503 in words is "four hundred thirty-one million, one hundred sixteen thousand, five hundred three".