431223011 has 4 divisors (see below), whose sum is σ = 446092800. Its totient is φ = 416353224.

The previous prime is 431223007. The next prime is 431223019. The reversal of 431223011 is 110322134.

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 431223011 - 2² = 431223007 is a prime.

It is a super-2 number, since 2×431223011² = 371906570431812242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431223019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7434851 + ... + 7434908.

It is an arithmetic number, because the mean of its divisors is an integer number (111523200).

Almost surely, 2^431223011 is an apocalyptic number.

431223011 is a deficient number, since it is larger than the sum of its proper divisors (14869789).

431223011 is a wasteful number, since it uses less digits than its factorization.

431223011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14869788.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 431223011 is about 20765.9098283702. The cubic root of 431223011 is about 755.4991427660.

Adding to 431223011 its reverse (110322134), we get a palindrome (541545145).

The spelling of 431223011 in words is "four hundred thirty-one million, two hundred twenty-three thousand, eleven".