1305450031129 has 2 divisors, whose sum is σ = 1305450031130. Its totient is φ = 1305450031128.

The previous prime is 1305450031057. The next prime is 1305450031241. The reversal of 1305450031129 is 9211300545031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1256981807104 + 48468224025 = 1121152^2 + 220155^2 .

It is a cyclic number.

It is not a de Polignac number, because 1305450031129 - 2¹⁵ = 1305449998361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1305450031094 and 1305450031103.

It is not a weakly prime, because it can be changed into another prime (1305420031129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652725015564 + 652725015565.

It is an arithmetic number, because the mean of its divisors is an integer number (652725015565).

Almost surely, 2^{1305450031129} is an apocalyptic number.

It is an amenable number.

1305450031129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1305450031129 is an equidigital number, since it uses as much as digits as its factorization.

1305450031129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 34.

The spelling of 1305450031129 in words is "one trillion, three hundred five billion, four hundred fifty million, thirty-one thousand, one hundred twenty-nine".