321033004220040 has 128 divisors (see below), whose sum is σ = 1105251742552320. Its totient is φ = 73074495283200.

The previous prime is 321033004220017. The next prime is 321033004220041. The reversal of 321033004220040 is 40022400330123.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (321033004220041) 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, 792706581 + ... + 793111460.

It is an arithmetic number, because the mean of its divisors is an integer number (8634779238690).

Almost surely, 2^{321033004220040} is an apocalyptic number.

321033004220040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

321033004220040 is an abundant number, since it is smaller than the sum of its proper divisors (784218738332280).

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

321033004220040 is a wasteful number, since it uses less digits than its factorization.

321033004220040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585818303 (or 1585818299 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 321033004220040 its reverse (40022400330123), we get a palindrome (361055404550163).

The spelling of 321033004220040 in words is "three hundred twenty-one trillion, thirty-three billion, four million, two hundred twenty thousand, forty".