123203323081 has 2 divisors, whose sum is σ = 123203323082. Its totient is φ = 123203323080.

The previous prime is 123203323069. The next prime is 123203323193. The reversal of 123203323081 is 180323302321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111595415481 + 11607907600 = 334059^2 + 107740^2 .

It is a cyclic number.

It is not a de Polignac number, because 123203323081 - 2³³ = 114613388489 is a prime.

It is a super-2 number, since 2×123203323081² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123203323981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61601661540 + 61601661541.

It is an arithmetic number, because the mean of its divisors is an integer number (61601661541).

Almost surely, 2^123203323081 is an apocalyptic number.

It is an amenable number.

123203323081 is a deficient number, since it is larger than the sum of its proper divisors (1).

123203323081 is an equidigital number, since it uses as much as digits as its factorization.

123203323081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 123203323081 in words is "one hundred twenty-three billion, two hundred three million, three hundred twenty-three thousand, eighty-one".