321144320032 has 12 divisors (see below), whose sum is σ = 632252880126. Its totient is φ = 160572160000.

The previous prime is 321144320017. The next prime is 321144320087. The reversal of 321144320032 is 230023441123.

It can be written as a sum of positive squares in only one way, i.e., 321076356496 + 67963536 = 566636^2 + 8244^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 321144319979 and 321144320006.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5017879969 + ... + 5017880032.

Almost surely, 2^321144320032 is an apocalyptic number.

321144320032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

321144320032 is a deficient number, since it is larger than the sum of its proper divisors (311108560094).

321144320032 is a wasteful number, since it uses less digits than its factorization.

321144320032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10035760011 (or 10035760003 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 321144320032 its reverse (230023441123), we get a palindrome (551167761155).

The spelling of 321144320032 in words is "three hundred twenty-one billion, one hundred forty-four million, three hundred twenty thousand, thirty-two".