321044434432 has 20 divisors (see below), whose sum is σ = 641461829976. Its totient is φ = 160522216960.

The previous prime is 321044434379. The next prime is 321044434441. The reversal of 321044434432 is 234434440123.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313519444 + ... + 313520467.

Almost surely, 2^321044434432 is an apocalyptic number.

321044434432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

321044434432 is a deficient number, since it is larger than the sum of its proper divisors (320417395544).

321044434432 is an frugal number, since it uses more digits than its factorization.

321044434432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627039929 (or 627039913 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 321044434432 its reverse (234434440123), we get a palindrome (555478874555).

The spelling of 321044434432 in words is "three hundred twenty-one billion, forty-four million, four hundred thirty-four thousand, four hundred thirty-two".