1230123331117 has 2 divisors, whose sum is σ = 1230123331118. Its totient is φ = 1230123331116.

The previous prime is 1230123331109. The next prime is 1230123331141. The reversal of 1230123331117 is 7111333210321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 664520062761 + 565603268356 = 815181^2 + 752066^2 .

It is an emirp because it is prime and its reverse (7111333210321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1230123331117 - 2³ = 1230123331109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230123338117) 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, 615061665558 + 615061665559.

It is an arithmetic number, because the mean of its divisors is an integer number (615061665559).

Almost surely, 2^{1230123331117} is an apocalyptic number.

It is an amenable number.

1230123331117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230123331117 is an equidigital number, since it uses as much as digits as its factorization.

1230123331117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

Adding to 1230123331117 its reverse (7111333210321), we get a palindrome (8341456541438).

The spelling of 1230123331117 in words is "one trillion, two hundred thirty billion, one hundred twenty-three million, three hundred thirty-one thousand, one hundred seventeen".