10643115121201 has 4 divisors (see below), whose sum is σ = 10643265903600. Its totient is φ = 10642964338804.

The previous prime is 10643115121187. The next prime is 10643115121211. The reversal of 10643115121201 is 10212151134601.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10643115121201 - 2²³ = 10643106732593 is a prime.

It is a super-2 number, since 2×10643115121201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10643115121201.

It is not an unprimeable number, because it can be changed into a prime (10643115121211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75285271 + ... + 75426508.

It is an arithmetic number, because the mean of its divisors is an integer number (2660816475900).

Almost surely, 2^{10643115121201} is an apocalyptic number.

It is an amenable number.

10643115121201 is a deficient number, since it is larger than the sum of its proper divisors (150782399).

10643115121201 is an equidigital number, since it uses as much as digits as its factorization.

10643115121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150782398.

The product of its (nonzero) digits is 1440, while the sum is 28.

Adding to 10643115121201 its reverse (10212151134601), we get a palindrome (20855266255802).

The spelling of 10643115121201 in words is "ten trillion, six hundred forty-three billion, one hundred fifteen million, one hundred twenty-one thousand, two hundred one".