123322112231 has 4 divisors (see below), whose sum is σ = 125343786264. Its totient is φ = 121300438200.

The previous prime is 123322112203. The next prime is 123322112273. The reversal of 123322112231 is 132211223321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132211223321 = 3919 ⋅33735959.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123322112231 is a prime.

It is a super-2 number, since 2×123322112231² (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 = 123322112197 and 123322112206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123322112281) 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, 1010836925 + ... + 1010837046.

It is an arithmetic number, because the mean of its divisors is an integer number (31335946566).

Almost surely, 2^123322112231 is an apocalyptic number.

123322112231 is a deficient number, since it is larger than the sum of its proper divisors (2021674033).

123322112231 is an equidigital number, since it uses as much as digits as its factorization.

123322112231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021674032.

The product of its digits is 864, while the sum is 23.

Adding to 123322112231 its reverse (132211223321), we get a palindrome (255533335552).

The spelling of 123322112231 in words is "one hundred twenty-three billion, three hundred twenty-two million, one hundred twelve thousand, two hundred thirty-one".