123031203223 has 2 divisors, whose sum is σ = 123031203224. Its totient is φ = 123031203222.

The previous prime is 123031203179. The next prime is 123031203233. The reversal of 123031203223 is 322302130321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123031203223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123031203194 and 123031203203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123031203233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61515601611 + 61515601612.

It is an arithmetic number, because the mean of its divisors is an integer number (61515601612).

Almost surely, 2^123031203223 is an apocalyptic number.

123031203223 is a deficient number, since it is larger than the sum of its proper divisors (1).

123031203223 is an equidigital number, since it uses as much as digits as its factorization.

123031203223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 123031203223 its reverse (322302130321), we get a palindrome (445333333544).

The spelling of 123031203223 in words is "one hundred twenty-three billion, thirty-one million, two hundred three thousand, two hundred twenty-three".