321111425532 has 48 divisors (see below), whose sum is σ = 758171602944. Its totient is φ = 105771480000.

The previous prime is 321111425507. The next prime is 321111425597. The reversal of 321111425532 is 235524111123.

It is a happy number.

It is a super-2 number, since 2×321111425532² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 321111425532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117819 + ... + 810002.

It is an arithmetic number, because the mean of its divisors is an integer number (15795241728).

Almost surely, 2^321111425532 is an apocalyptic number.

It is an amenable number.

321111425532 is an abundant number, since it is smaller than the sum of its proper divisors (437060177412).

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

321111425532 is a wasteful number, since it uses less digits than its factorization.

321111425532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928170 (or 928168 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

Adding to 321111425532 its reverse (235524111123), we get a palindrome (556635536655).

The spelling of 321111425532 in words is "three hundred twenty-one billion, one hundred eleven million, four hundred twenty-five thousand, five hundred thirty-two".