431233213 has 8 divisors (see below), whose sum is σ = 436519800. Its totient is φ = 425956608.

The previous prime is 431233211. The next prime is 431233249. The reversal of 431233213 is 312332134.

It can be written as a sum of positive squares in 4 ways, for example, as 44796249 + 386436964 = 6693^2 + 19658^2 .

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 431233213 - 2¹ = 431233211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431233211) 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, 120433 + ... + 123961.

It is an arithmetic number, because the mean of its divisors is an integer number (54564975).

Almost surely, 2^431233213 is an apocalyptic number.

It is an amenable number.

431233213 is a deficient number, since it is larger than the sum of its proper divisors (5286587).

431233213 is a wasteful number, since it uses less digits than its factorization.

431233213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4991.

The product of its digits is 1296, while the sum is 22.

The square root of 431233213 is about 20766.1554698986. The cubic root of 431233213 is about 755.5051006589.

Adding to 431233213 its reverse (312332134), we get a palindrome (743565347).

The spelling of 431233213 in words is "four hundred thirty-one million, two hundred thirty-three thousand, two hundred thirteen".