431215305320 has 16 divisors (see below), whose sum is σ = 970234437060. Its totient is φ = 172486122112.

The previous prime is 431215305319. The next prime is 431215305347. The reversal of 431215305320 is 23503512134.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 360343281796 + 70872023524 = 600286^2 + 266218^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5390191277 + ... + 5390191356.

Almost surely, 2^431215305320 is an apocalyptic number.

431215305320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

431215305320 is an abundant number, since it is smaller than the sum of its proper divisors (539019131740).

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

431215305320 is a wasteful number, since it uses less digits than its factorization.

431215305320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10780382644 (or 10780382640 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 431215305320 its reverse (23503512134), we get a palindrome (454718817454).

The spelling of 431215305320 in words is "four hundred thirty-one billion, two hundred fifteen million, three hundred five thousand, three hundred twenty".