321432440510612 has 12 divisors (see below), whose sum is σ = 562518894470400. Its totient is φ = 160712756376216.

The previous prime is 321432440510611. The next prime is 321432440510653. The reversal of 321432440510612 is 216015044234123.

It is a super-2 number, since 2×321432440510612² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321432440510611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 865760978 + ... + 866132169.

It is an arithmetic number, because the mean of its divisors is an integer number (46876574539200).

Almost surely, 2^{321432440510612} is an apocalyptic number.

It is an amenable number.

321432440510612 is a deficient number, since it is larger than the sum of its proper divisors (241086453959788).

321432440510612 is a wasteful number, since it uses less digits than its factorization.

321432440510612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731939550 (or 1731939548 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 38.

Adding to 321432440510612 its reverse (216015044234123), we get a palindrome (537447484744735).

The spelling of 321432440510612 in words is "three hundred twenty-one trillion, four hundred thirty-two billion, four hundred forty million, five hundred ten thousand, six hundred twelve".