22321032231 has 8 divisors (see below), whose sum is σ = 29884868464. Its totient is φ = 14818942080.

The previous prime is 22321032197. The next prime is 22321032233. The reversal of 22321032231 is 13223012322.

It is a happy number.

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

It is not a de Polignac number, because 22321032231 - 2¹³ = 22321024039 is a prime.

It is a super-3 number, since 3×22321032231³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22321032198 and 22321032207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22321032233) 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, 15435676 + ... + 15437121.

It is an arithmetic number, because the mean of its divisors is an integer number (3735608558).

Almost surely, 2^22321032231 is an apocalyptic number.

22321032231 is a deficient number, since it is larger than the sum of its proper divisors (7563836233).

22321032231 is a wasteful number, since it uses less digits than its factorization.

22321032231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30873041.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 22321032231 its reverse (13223012322), we get a palindrome (35544044553).

The spelling of 22321032231 in words is "twenty-two billion, three hundred twenty-one million, thirty-two thousand, two hundred thirty-one".