123113210203 has 2 divisors, whose sum is σ = 123113210204. Its totient is φ = 123113210202.

The previous prime is 123113210089. The next prime is 123113210239. The reversal of 123113210203 is 302012311321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123113210203 is a prime.

It is not a weakly prime, because it can be changed into another prime (123113240203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61556605101 + 61556605102.

It is an arithmetic number, because the mean of its divisors is an integer number (61556605102).

Almost surely, 2^123113210203 is an apocalyptic number.

123113210203 is a deficient number, since it is larger than the sum of its proper divisors (1).

123113210203 is an equidigital number, since it uses as much as digits as its factorization.

123113210203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 123113210203 its reverse (302012311321), we get a palindrome (425125521524).

The spelling of 123113210203 in words is "one hundred twenty-three billion, one hundred thirteen million, two hundred ten thousand, two hundred three".