123103201213 has 2 divisors, whose sum is σ = 123103201214. Its totient is φ = 123103201212.

The previous prime is 123103201201. The next prime is 123103201229. The reversal of 123103201213 is 312102301321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95479764004 + 27623437209 = 308998^2 + 166203^2 .

It is a cyclic number.

It is not a de Polignac number, because 123103201213 - 2⁵ = 123103201181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123103201513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61551600606 + 61551600607.

It is an arithmetic number, because the mean of its divisors is an integer number (61551600607).

Almost surely, 2^123103201213 is an apocalyptic number.

It is an amenable number.

123103201213 is a deficient number, since it is larger than the sum of its proper divisors (1).

123103201213 is an equidigital number, since it uses as much as digits as its factorization.

123103201213 is an odious number, because the sum of its binary digits is odd.

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

Adding to 123103201213 its reverse (312102301321), we get a palindrome (435205502534).

The spelling of 123103201213 in words is "one hundred twenty-three billion, one hundred three million, two hundred one thousand, two hundred thirteen".