1212201130123 has 2 divisors, whose sum is σ = 1212201130124. Its totient is φ = 1212201130122.

The previous prime is 1212201130121. The next prime is 1212201130141. The reversal of 1212201130123 is 3210311022121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1212201130123 - 2¹ = 1212201130121 is a prime.

Together with 1212201130121, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1212201130123.

It is not a weakly prime, because it can be changed into another prime (1212201130121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606100565061 + 606100565062.

It is an arithmetic number, because the mean of its divisors is an integer number (606100565062).

Almost surely, 2^{1212201130123} is an apocalyptic number.

1212201130123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212201130123 is an equidigital number, since it uses as much as digits as its factorization.

1212201130123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1212201130123 its reverse (3210311022121), we get a palindrome (4422512152244).

The spelling of 1212201130123 in words is "one trillion, two hundred twelve billion, two hundred one million, one hundred thirty thousand, one hundred twenty-three".