12801701065 has 4 divisors (see below), whose sum is σ = 15362041284. Its totient is φ = 10241360848.

The previous prime is 12801701039. The next prime is 12801701111. The reversal of 12801701065 is 56010710821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3167100729 + 9634600336 = 56277^2 + 98156^2 .

It is a cyclic number.

It is not a de Polignac number, because 12801701065 - 2²⁹ = 12264830153 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1280170102 + ... + 1280170111.

It is an arithmetic number, because the mean of its divisors is an integer number (3840510321).

Almost surely, 2^12801701065 is an apocalyptic number.

It is an amenable number.

12801701065 is a deficient number, since it is larger than the sum of its proper divisors (2560340219).

12801701065 is an equidigital number, since it uses as much as digits as its factorization.

12801701065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560340218.

The product of its (nonzero) digits is 3360, while the sum is 31.

The spelling of 12801701065 in words is "twelve billion, eight hundred one million, seven hundred one thousand, sixty-five".