22323220231 has 4 divisors (see below), whose sum is σ = 24040391032. Its totient is φ = 20606049432.

The previous prime is 22323220207. The next prime is 22323220247. The reversal of 22323220231 is 13202232322.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22323220231 - 2¹⁹ = 22322695943 is a prime.

It is a super-3 number, since 3×22323220231³ (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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (22323223231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 858585381 + ... + 858585406.

It is an arithmetic number, because the mean of its divisors is an integer number (6010097758).

Almost surely, 2^22323220231 is an apocalyptic number.

22323220231 is a deficient number, since it is larger than the sum of its proper divisors (1717170801).

22323220231 is a wasteful number, since it uses less digits than its factorization.

22323220231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717170800.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 22323220231 its reverse (13202232322), we get a palindrome (35525452553).

The spelling of 22323220231 in words is "twenty-two billion, three hundred twenty-three million, two hundred twenty thousand, two hundred thirty-one".