4401033021321 has 16 divisors (see below), whose sum is σ = 6013301665536. Its totient is φ = 2861593002576.

The previous prime is 4401033021311. The next prime is 4401033021323. The reversal of 4401033021321 is 1231203301044.

It is a happy number.

It is not a de Polignac number, because 4401033021321 - 2⁵ = 4401033021289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4401033021291 and 4401033021300.

It is not an unprimeable number, because it can be changed into a prime (4401033021323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24887395 + ... + 25063608.

It is an arithmetic number, because the mean of its divisors is an integer number (375831354096).

Almost surely, 2^{4401033021321} is an apocalyptic number.

It is an amenable number.

4401033021321 is a deficient number, since it is larger than the sum of its proper divisors (1612268644215).

4401033021321 is a wasteful number, since it uses less digits than its factorization.

4401033021321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49951732.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 4401033021321 its reverse (1231203301044), we get a palindrome (5632236322365).

The spelling of 4401033021321 in words is "four trillion, four hundred one billion, thirty-three million, twenty-one thousand, three hundred twenty-one".