4021321040004 has 24 divisors (see below), whose sum is σ = 9385624681888. Its totient is φ = 1340077167360.

The previous prime is 4021321040003. The next prime is 4021321040039. The reversal of 4021321040004 is 4000401231204.

It is not an unprimeable number, because it can be changed into a prime (4021321040003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45351277 + ... + 45439860.

Almost surely, 2^{4021321040004} is an apocalyptic number.

It is an amenable number.

4021321040004 is an abundant number, since it is smaller than the sum of its proper divisors (5364303641884).

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

4021321040004 is a wasteful number, since it uses less digits than its factorization.

4021321040004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90794835 (or 90794833 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 4021321040004 its reverse (4000401231204), we get a palindrome (8021722271208).

The spelling of 4021321040004 in words is "four trillion, twenty-one billion, three hundred twenty-one million, forty thousand, four".