321213013132 has 48 divisors (see below), whose sum is σ = 621207820800. Its totient is φ = 144106522560.

The previous prime is 321213013127. The next prime is 321213013133. The reversal of 321213013132 is 231310312123.

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

It is not an unprimeable number, because it can be changed into a prime (321213013133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10792023 + ... + 10821745.

It is an arithmetic number, because the mean of its divisors is an integer number (12941829600).

Almost surely, 2^321213013132 is an apocalyptic number.

It is an amenable number.

321213013132 is a deficient number, since it is larger than the sum of its proper divisors (299994807668).

321213013132 is a wasteful number, since it uses less digits than its factorization.

321213013132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32926 (or 32924 counting only the distinct ones).

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

Adding to 321213013132 its reverse (231310312123), we get a palindrome (552523325255).

The spelling of 321213013132 in words is "three hundred twenty-one billion, two hundred thirteen million, thirteen thousand, one hundred thirty-two".