321033045040 has 240 divisors, whose sum is σ = 805116469248. Its totient is φ = 118973505024.

The previous prime is 321033045019. The next prime is 321033045161. The reversal of 321033045040 is 40540330123.

It is a junction number, because it is equal to n+sod(n) for n = 321033044996 and 321033045014.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 204870337 + ... + 204871903.

Almost surely, 2^321033045040 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 321033045040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (402558234624).

321033045040 is an abundant number, since it is smaller than the sum of its proper divisors (484083424208).

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

321033045040 is a wasteful number, since it uses less digits than its factorization.

321033045040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776 (or 1747 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 321033045040 its reverse (40540330123), we get a palindrome (361573375163).

The spelling of 321033045040 in words is "three hundred twenty-one billion, thirty-three million, forty-five thousand, forty".