10121286365 has 4 divisors (see below), whose sum is σ = 12145543644. Its totient is φ = 8097029088.

The previous prime is 10121286349. The next prime is 10121286389. The reversal of 10121286365 is 56368212101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56368212101 = 11923 ⋅4727687.

It can be written as a sum of positive squares in 2 ways, for example, as 2977994041 + 7143292324 = 54571^2 + 84518^2 .

It is a cyclic number.

It is not a de Polignac number, because 10121286365 - 2⁴ = 10121286349 is a prime.

It is a Duffinian number.

It is a congruent 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, 1012128632 + ... + 1012128641.

It is an arithmetic number, because the mean of its divisors is an integer number (3036385911).

Almost surely, 2^10121286365 is an apocalyptic number.

It is an amenable number.

10121286365 is a deficient number, since it is larger than the sum of its proper divisors (2024257279).

10121286365 is an equidigital number, since it uses as much as digits as its factorization.

10121286365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2024257278.

The product of its (nonzero) digits is 17280, while the sum is 35.

Adding to 10121286365 its reverse (56368212101), we get a palindrome (66489498466).

The spelling of 10121286365 in words is "ten billion, one hundred twenty-one million, two hundred eighty-six thousand, three hundred sixty-five".