1230504440129 has 2 divisors, whose sum is σ = 1230504440130. Its totient is φ = 1230504440128.

The previous prime is 1230504440117. The next prime is 1230504440237. The reversal of 1230504440129 is 9210444050321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1101393577729 + 129110862400 = 1049473^2 + 359320^2 .

It is an emirp because it is prime and its reverse (9210444050321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1230504440129 - 2³² = 1226209472833 is a prime.

It is not a weakly prime, because it can be changed into another prime (1230504410129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615252220064 + 615252220065.

It is an arithmetic number, because the mean of its divisors is an integer number (615252220065).

Almost surely, 2^{1230504440129} is an apocalyptic number.

It is an amenable number.

1230504440129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230504440129 is an equidigital number, since it uses as much as digits as its factorization.

1230504440129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 1230504440129 in words is "one trillion, two hundred thirty billion, five hundred four million, four hundred forty thousand, one hundred twenty-nine".