321213310132 has 96 divisors (see below), whose sum is σ = 703110530304. Its totient is φ = 126145382400.

The previous prime is 321213310087. The next prime is 321213310141. The reversal of 321213310132 is 231013312123.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1668793 + ... + 1851295.

It is an arithmetic number, because the mean of its divisors is an integer number (7324068024).

Almost surely, 2^321213310132 is an apocalyptic number.

It is an amenable number.

321213310132 is an abundant number, since it is smaller than the sum of its proper divisors (381897220172).

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

321213310132 is a wasteful number, since it uses less digits than its factorization.

321213310132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182729 (or 182727 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 321213310132 its reverse (231013312123), we get a palindrome (552226622255).

The spelling of 321213310132 in words is "three hundred twenty-one billion, two hundred thirteen million, three hundred ten thousand, one hundred thirty-two".