321310231132 has 48 divisors (see below), whose sum is σ = 621087409152. Its totient is φ = 144223882880.

The previous prime is 321310231111. The next prime is 321310231133. The reversal of 321310231132 is 231132013123.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321310231133) 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 15 ways as a sum of consecutive naturals, for example, 8369493 + ... + 8407795.

It is an arithmetic number, because the mean of its divisors is an integer number (12939321024).

Almost surely, 2^321310231132 is an apocalyptic number.

It is an amenable number.

321310231132 is a deficient number, since it is larger than the sum of its proper divisors (299777178020).

321310231132 is a wasteful number, since it uses less digits than its factorization.

321310231132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40698 (or 40696 counting only the distinct ones).

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

Adding to 321310231132 its reverse (231132013123), we get a palindrome (552442244255).

The spelling of 321310231132 in words is "three hundred twenty-one billion, three hundred ten million, two hundred thirty-one thousand, one hundred thirty-two".