431312340213 has 16 divisors (see below), whose sum is σ = 639430339840. Its totient is φ = 287339467392.

The previous prime is 431312340167. The next prime is 431312340233. The reversal of 431312340213 is 312043213134.

It is a happy number.

431312340213 is a `hidden beast` number, since 4 + 3 + 1 + 312 + 340 + 2 + 1 + 3 = 666.

It is not a de Polignac number, because 431312340213 - 2⁶ = 431312340149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431312340233) 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 15 ways as a sum of consecutive naturals, for example, 5574556 + ... + 5651397.

It is an arithmetic number, because the mean of its divisors is an integer number (39964396240).

Almost surely, 2^431312340213 is an apocalyptic number.

It is an amenable number.

431312340213 is a deficient number, since it is larger than the sum of its proper divisors (208117999627).

431312340213 is a wasteful number, since it uses less digits than its factorization.

431312340213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11227385 (or 11227379 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 431312340213 its reverse (312043213134), we get a palindrome (743355553347).

The spelling of 431312340213 in words is "four hundred thirty-one billion, three hundred twelve million, three hundred forty thousand, two hundred thirteen".