1306326061025 has 6 divisors (see below), whose sum is σ = 1619844315702. Its totient is φ = 1045060848800.

The previous prime is 1306326061021. The next prime is 1306326061057. The reversal of 1306326061025 is 5201606236031.

It can be written as a sum of positive squares in 3 ways, for example, as 369036810256 + 937289250769 = 607484^2 + 968137^2 .

It is not a de Polignac number, because 1306326061025 - 2² = 1306326061021 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1306326061021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26126521196 + ... + 26126521245.

It is an arithmetic number, because the mean of its divisors is an integer number (269974052617).

Almost surely, 2^{1306326061025} is an apocalyptic number.

It is an amenable number.

1306326061025 is a deficient number, since it is larger than the sum of its proper divisors (313518254677).

1306326061025 is an equidigital number, since it uses as much as digits as its factorization.

1306326061025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52253042451 (or 52253042446 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 1306326061025 in words is "one trillion, three hundred six billion, three hundred twenty-six million, sixty-one thousand, twenty-five".