1242525304129 has 2 divisors, whose sum is σ = 1242525304130. Its totient is φ = 1242525304128.

The previous prime is 1242525304109. The next prime is 1242525304151. The reversal of 1242525304129 is 9214035252421.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 996548982529 + 245976321600 = 998273^2 + 495960^2 .

It is a cyclic number.

It is not a de Polignac number, because 1242525304129 - 2³¹ = 1240377820481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1242525304091 and 1242525304100.

It is not a weakly prime, because it can be changed into another prime (1242525304109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621262652064 + 621262652065.

It is an arithmetic number, because the mean of its divisors is an integer number (621262652065).

Almost surely, 2^{1242525304129} is an apocalyptic number.

It is an amenable number.

1242525304129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242525304129 is an equidigital number, since it uses as much as digits as its factorization.

1242525304129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 1242525304129 in words is "one trillion, two hundred forty-two billion, five hundred twenty-five million, three hundred four thousand, one hundred twenty-nine".