123133111223 has 2 divisors, whose sum is σ = 123133111224. Its totient is φ = 123133111222.

The previous prime is 123133111207. The next prime is 123133111243. The reversal of 123133111223 is 322111331321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123133111223 - 2⁴ = 123133111207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123133111243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61566555611 + 61566555612.

It is an arithmetic number, because the mean of its divisors is an integer number (61566555612).

Almost surely, 2^123133111223 is an apocalyptic number.

123133111223 is a deficient number, since it is larger than the sum of its proper divisors (1).

123133111223 is an equidigital number, since it uses as much as digits as its factorization.

123133111223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 23.

Adding to 123133111223 its reverse (322111331321), we get a palindrome (445244442544).

The spelling of 123133111223 in words is "one hundred twenty-three billion, one hundred thirty-three million, one hundred eleven thousand, two hundred twenty-three".