1001231230123 has 2 divisors, whose sum is σ = 1001231230124. Its totient is φ = 1001231230122.

The previous prime is 1001231230057. The next prime is 1001231230141. The reversal of 1001231230123 is 3210321321001.

It is a strong prime.

It is an emirp because it is prime and its reverse (3210321321001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1001231230123 - 2¹³ = 1001231221931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1001231230123.

It is not a weakly prime, because it can be changed into another prime (1001231230183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500615615061 + 500615615062.

It is an arithmetic number, because the mean of its divisors is an integer number (500615615062).

Almost surely, 2^{1001231230123} is an apocalyptic number.

1001231230123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001231230123 is an equidigital number, since it uses as much as digits as its factorization.

1001231230123 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 1001231230123 its reverse (3210321321001), we get a palindrome (4211552551124).

The spelling of 1001231230123 in words is "one trillion, one billion, two hundred thirty-one million, two hundred thirty thousand, one hundred twenty-three".