321112112232 has 128 divisors (see below), whose sum is σ = 861160377600. Its totient is φ = 99519602688.

The previous prime is 321112112227. The next prime is 321112112239. The reversal of 321112112232 is 232211211123.

It is a super-2 number, since 2×321112112232² (a number of 24 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 321112112199 and 321112112208.

It is not an unprimeable number, because it can be changed into a prime (321112112239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22643128 + ... + 22657304.

It is an arithmetic number, because the mean of its divisors is an integer number (6727815450).

Almost surely, 2^321112112232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321112112232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (430580188800).

321112112232 is an abundant number, since it is smaller than the sum of its proper divisors (540048265368).

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

321112112232 is a wasteful number, since it uses less digits than its factorization.

321112112232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15355 (or 15351 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

Adding to 321112112232 its reverse (232211211123), we get a palindrome (553323323355).

The spelling of 321112112232 in words is "three hundred twenty-one billion, one hundred twelve million, one hundred twelve thousand, two hundred thirty-two".