12223231123 has 2 divisors, whose sum is σ = 12223231124. Its totient is φ = 12223231122.

The previous prime is 12223231117. The next prime is 12223231133. The reversal of 12223231123 is 32113232221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12223231123 is a prime.

It is a super-2 number, since 2×12223231123² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12223231094 and 12223231103.

It is not a weakly prime, because it can be changed into another prime (12223231133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111615561 + 6111615562.

It is an arithmetic number, because the mean of its divisors is an integer number (6111615562).

Almost surely, 2^12223231123 is an apocalyptic number.

12223231123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12223231123 is an equidigital number, since it uses as much as digits as its factorization.

12223231123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 22.

Adding to 12223231123 its reverse (32113232221), we get a palindrome (44336463344).

The spelling of 12223231123 in words is "twelve billion, two hundred twenty-three million, two hundred thirty-one thousand, one hundred twenty-three".