321133321988 has 12 divisors (see below), whose sum is σ = 567776956572. Its totient is φ = 158911334400.

The previous prime is 321133321979. The next prime is 321133322011. The reversal of 321133321988 is 889123331123.

It can be written as a sum of positive squares in 2 ways, for example, as 225038281924 + 96095040064 = 474382^2 + 309992^2 .

It is a super-2 number, since 2×321133321988² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413831213 + ... + 413831988.

It is an arithmetic number, because the mean of its divisors is an integer number (47314746381).

Almost surely, 2^321133321988 is an apocalyptic number.

It is an amenable number.

321133321988 is a deficient number, since it is larger than the sum of its proper divisors (246643634584).

321133321988 is a wasteful number, since it uses less digits than its factorization.

321133321988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827663302 (or 827663300 counting only the distinct ones).

The product of its digits is 186624, while the sum is 44.

The spelling of 321133321988 in words is "three hundred twenty-one billion, one hundred thirty-three million, three hundred twenty-one thousand, nine hundred eighty-eight".