123203323231 has 2 divisors, whose sum is σ = 123203323232. Its totient is φ = 123203323230.

The previous prime is 123203323193. The next prime is 123203323247. The reversal of 123203323231 is 132323302321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123203323231 - 2⁹ = 123203322719 is a prime.

It is a super-2 number, since 2×123203323231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123203323196 and 123203323205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123203323931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61601661615 + 61601661616.

It is an arithmetic number, because the mean of its divisors is an integer number (61601661616).

Almost surely, 2^123203323231 is an apocalyptic number.

123203323231 is a deficient number, since it is larger than the sum of its proper divisors (1).

123203323231 is an equidigital number, since it uses as much as digits as its factorization.

123203323231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 123203323231 its reverse (132323302321), we get a palindrome (255526625552).

The spelling of 123203323231 in words is "one hundred twenty-three billion, two hundred three million, three hundred twenty-three thousand, two hundred thirty-one".