321054530132 has 72 divisors (see below), whose sum is σ = 705078284904. Its totient is φ = 127057502208.

The previous prime is 321054530101. The next prime is 321054530221. The reversal of 321054530132 is 231035450123.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 59518433296 + 261536096836 = 243964^2 + 511406^2 .

It is a super-2 number, since 2×321054530132² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321054530095 and 321054530104.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 732413 + ... + 1085604.

It is an arithmetic number, because the mean of its divisors is an integer number (9792753957).

Almost surely, 2^321054530132 is an apocalyptic number.

It is an amenable number.

321054530132 is an abundant number, since it is smaller than the sum of its proper divisors (384023754772).

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

321054530132 is a wasteful number, since it uses less digits than its factorization.

321054530132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818105 (or 1818096 counting only the distinct ones).

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

Adding to 321054530132 its reverse (231035450123), we get a palindrome (552089980255).

The spelling of 321054530132 in words is "three hundred twenty-one billion, fifty-four million, five hundred thirty thousand, one hundred thirty-two".