10103821865 has 8 divisors (see below), whose sum is σ = 12205960200. Its totient is φ = 8028808192.

The previous prime is 10103821801. The next prime is 10103821873. The reversal of 10103821865 is 56812830101.

It can be written as a sum of positive squares in 4 ways, for example, as 517062121 + 9586759744 = 22739^2 + 97912^2 .

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 10103821865 - 2⁶ = 10103821801 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6780344 + ... + 6781833.

It is an arithmetic number, because the mean of its divisors is an integer number (1525745025).

Almost surely, 2^10103821865 is an apocalyptic number.

It is an amenable number.

10103821865 is a deficient number, since it is larger than the sum of its proper divisors (2102138335).

10103821865 is a wasteful number, since it uses less digits than its factorization.

10103821865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13562331.

The product of its (nonzero) digits is 11520, while the sum is 35.

The spelling of 10103821865 in words is "ten billion, one hundred three million, eight hundred twenty-one thousand, eight hundred sixty-five".