10115002721 has 8 divisors (see below), whose sum is σ = 10556058240. Its totient is φ = 9674053312.

The previous prime is 10115002649. The next prime is 10115002727. The reversal of 10115002721 is 12720051101.

It is a happy number.

10115002721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10115002721 - 2¹⁸ = 10114740577 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10115002693 and 10115002702.

It is not an unprimeable number, because it can be changed into a prime (10115002727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215276 + ... + 258018.

It is an arithmetic number, because the mean of its divisors is an integer number (1319507280).

Almost surely, 2^10115002721 is an apocalyptic number.

It is an amenable number.

10115002721 is a deficient number, since it is larger than the sum of its proper divisors (441055519).

10115002721 is a wasteful number, since it uses less digits than its factorization.

10115002721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53055.

The product of its (nonzero) digits is 140, while the sum is 20.

Adding to 10115002721 its reverse (12720051101), we get a palindrome (22835053822).

The spelling of 10115002721 in words is "ten billion, one hundred fifteen million, two thousand, seven hundred twenty-one".