1012124515265 has 4 divisors (see below), whose sum is σ = 1214549418324. Its totient is φ = 809699612208.

The previous prime is 1012124515253. The next prime is 1012124515301. The reversal of 1012124515265 is 5625154212101.

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 209665083664 + 802459431601 = 457892^2 + 895801^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012124515265 - 2³⁶ = 943405038529 is a prime.

It is a super-2 number, since 2×1012124515265² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101212451522 + ... + 101212451531.

It is an arithmetic number, because the mean of its divisors is an integer number (303637354581).

Almost surely, 2^{1012124515265} is an apocalyptic number.

It is an amenable number.

1012124515265 is a deficient number, since it is larger than the sum of its proper divisors (202424903059).

1012124515265 is an equidigital number, since it uses as much as digits as its factorization.

1012124515265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202424903058.

The product of its (nonzero) digits is 24000, while the sum is 35.

Adding to 1012124515265 its reverse (5625154212101), we get a palindrome (6637278727366).

The spelling of 1012124515265 in words is "one trillion, twelve billion, one hundred twenty-four million, five hundred fifteen thousand, two hundred sixty-five".