22103123231 has 8 divisors (see below), whose sum is σ = 25276804224. Its totient is φ = 18933465240.

The previous prime is 22103123183. The next prime is 22103123261. The reversal of 22103123231 is 13232130122.

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 22103123231 - 2⁶ = 22103123167 is a prime.

It is a super-2 number, since 2×22103123231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22103123261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 993965 + ... + 1015958.

It is an arithmetic number, because the mean of its divisors is an integer number (3159600528).

Almost surely, 2^22103123231 is an apocalyptic number.

22103123231 is a deficient number, since it is larger than the sum of its proper divisors (3173680993).

22103123231 is a wasteful number, since it uses less digits than its factorization.

22103123231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011501.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 22103123231 its reverse (13232130122), we get a palindrome (35335253353).

The spelling of 22103123231 in words is "twenty-two billion, one hundred three million, one hundred twenty-three thousand, two hundred thirty-one".