431321421244 has 24 divisors (see below), whose sum is σ = 863234180480. Its totient is φ = 184725322416.

The previous prime is 431321421241. The next prime is 431321421247. The reversal of 431321421244 is 442124123134.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (431321421241) and next prime (431321421247).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431321421241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5238222 + ... + 5319925.

Almost surely, 2^431321421244 is an apocalyptic number.

It is an amenable number.

431321421244 is an abundant number, since it is smaller than the sum of its proper divisors (431912759236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

431321421244 is a wasteful number, since it uses less digits than its factorization.

431321421244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10559617 (or 10559615 counting only the distinct ones).

The product of its digits is 18432, while the sum is 31.

Adding to 431321421244 its reverse (442124123134), we get a palindrome (873445544378).

The spelling of 431321421244 in words is "four hundred thirty-one billion, three hundred twenty-one million, four hundred twenty-one thousand, two hundred forty-four".