1242102350129 has 2 divisors, whose sum is σ = 1242102350130. Its totient is φ = 1242102350128.

The previous prime is 1242102350053. The next prime is 1242102350221. The reversal of 1242102350129 is 9210532012421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 981238830625 + 260863519504 = 990575^2 + 510748^2 .

It is a cyclic number.

It is not a de Polignac number, because 1242102350129 - 2⁴⁰ = 142590722353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1242102350095 and 1242102350104.

It is not a weakly prime, because it can be changed into another prime (1242102359129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621051175064 + 621051175065.

It is an arithmetic number, because the mean of its divisors is an integer number (621051175065).

Almost surely, 2^{1242102350129} is an apocalyptic number.

It is an amenable number.

1242102350129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242102350129 is an equidigital number, since it uses as much as digits as its factorization.

1242102350129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 1242102350129 in words is "one trillion, two hundred forty-two billion, one hundred two million, three hundred fifty thousand, one hundred twenty-nine".