12123102120203 has 2 divisors, whose sum is σ = 12123102120204. Its totient is φ = 12123102120202.

The previous prime is 12123102120197. The next prime is 12123102120211. The reversal of 12123102120203 is 30202120132121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12123102120203 - 2²⁸ = 12122833684747 is a prime.

It is a super-2 number, since 2×12123102120203² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12123102120253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061551060101 + 6061551060102.

It is an arithmetic number, because the mean of its divisors is an integer number (6061551060102).

Almost surely, 2^{12123102120203} is an apocalyptic number.

12123102120203 is a deficient number, since it is larger than the sum of its proper divisors (1).

12123102120203 is an equidigital number, since it uses as much as digits as its factorization.

12123102120203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12123102120203 its reverse (30202120132121), we get a palindrome (42325222252324).

The spelling of 12123102120203 in words is "twelve trillion, one hundred twenty-three billion, one hundred two million, one hundred twenty thousand, two hundred three".