221321032031023 has 8 divisors (see below), whose sum is σ = 241899268406400. Its totient is φ = 201582723671040.

The previous prime is 221321032030957. The next prime is 221321032031059. The reversal of 221321032031023 is 320130230123122.

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 221321032031023 - 2¹⁷ = 221321031899951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221321032031123) 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, 209982003298 + ... + 209982004351.

It is an arithmetic number, because the mean of its divisors is an integer number (30237408550800).

Almost surely, 2^{221321032031023} is an apocalyptic number.

221321032031023 is a deficient number, since it is larger than the sum of its proper divisors (20578236375377).

221321032031023 is a wasteful number, since it uses less digits than its factorization.

221321032031023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419964007697.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 221321032031023 its reverse (320130230123122), we get a palindrome (541451262154145).

The spelling of 221321032031023 in words is "two hundred twenty-one trillion, three hundred twenty-one billion, thirty-two million, thirty-one thousand, twenty-three".