123222300231 has 4 divisors (see below), whose sum is σ = 164296400312. Its totient is φ = 82148200152.

The previous prime is 123222300221. The next prime is 123222300247. The reversal of 123222300231 is 132003222321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132003222321 = 3 ⋅44001074107.

It is not a de Polignac number, because 123222300231 - 2¹⁷ = 123222169159 is a prime.

It is a super-2 number, since 2×123222300231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123222300198 and 123222300207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123222300221) 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 3 ways as a sum of consecutive naturals, for example, 20537050036 + ... + 20537050041.

It is an arithmetic number, because the mean of its divisors is an integer number (41074100078).

Almost surely, 2^123222300231 is an apocalyptic number.

123222300231 is a deficient number, since it is larger than the sum of its proper divisors (41074100081).

123222300231 is an equidigital number, since it uses as much as digits as its factorization.

123222300231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41074100080.

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

Adding to 123222300231 its reverse (132003222321), we get a palindrome (255225522552).

The spelling of 123222300231 in words is "one hundred twenty-three billion, two hundred twenty-two million, three hundred thousand, two hundred thirty-one".