321253505132 has 12 divisors (see below), whose sum is σ = 642507010320. Its totient is φ = 137680073616.

The previous prime is 321253505129. The next prime is 321253505137. The reversal of 321253505132 is 231505352123.

321253505132 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (321253505137) by changing a digit.

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, 5736669707 + ... + 5736669762.

It is an arithmetic number, because the mean of its divisors is an integer number (53542250860).

Almost surely, 2^321253505132 is an apocalyptic number.

It is an amenable number.

321253505132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

321253505132 is a wasteful number, since it uses less digits than its factorization.

321253505132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11473339480 (or 11473339478 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 32.

Adding to 321253505132 its reverse (231505352123), we get a palindrome (552758857255).

The spelling of 321253505132 in words is "three hundred twenty-one billion, two hundred fifty-three million, five hundred five thousand, one hundred thirty-two".