923011031201221 has 8 divisors (see below), whose sum is σ = 971599272628320. Its totient is φ = 874423661121072.

The previous prime is 923011031201209. The next prime is 923011031201227. The reversal of 923011031201221 is 122102130110329.

923011031201221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 923011031201221 - 2¹³ = 923011031193029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 923011031201221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (923011031201227) 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, 215661835 + ... + 219900088.

It is an arithmetic number, because the mean of its divisors is an integer number (121449909078540).

Almost surely, 2^{923011031201221} is an apocalyptic number.

It is an amenable number.

923011031201221 is a deficient number, since it is larger than the sum of its proper divisors (48588241427099).

923011031201221 is a wasteful number, since it uses less digits than its factorization.

923011031201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435673475.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 923011031201221 in words is "nine hundred twenty-three trillion, eleven billion, thirty-one million, two hundred one thousand, two hundred twenty-one".