921023002223321 has 64 divisors (see below), whose sum is σ = 990743775840000. Its totient is φ = 853684315545600.

The previous prime is 921023002223263. The next prime is 921023002223323. The reversal of 921023002223321 is 123322200320129.

It is a cyclic number.

It is not a de Polignac number, because 921023002223321 - 2⁴² = 916624955712217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (921023002223323) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 76477865126 + ... + 76477877168.

It is an arithmetic number, because the mean of its divisors is an integer number (15480371497500).

Almost surely, 2^{921023002223321} is an apocalyptic number.

It is an amenable number.

921023002223321 is a deficient number, since it is larger than the sum of its proper divisors (69720773616679).

921023002223321 is a wasteful number, since it uses less digits than its factorization.

921023002223321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13434.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 921023002223321 in words is "nine hundred twenty-one trillion, twenty-three billion, two million, two hundred twenty-three thousand, three hundred twenty-one".