10201020008 has 8 divisors (see below), whose sum is σ = 19126912530. Its totient is φ = 5100510000.

The previous prime is 10201019963. The next prime is 10201020023. The reversal of 10201020008 is 80002010201.

It can be written as a sum of positive squares in only one way, i.e., 8445242404 + 1755777604 = 91898^2 + 41902^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 10201019974 and 10201020001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637563743 + ... + 637563758.

Almost surely, 2^10201020008 is an apocalyptic number.

It is an amenable number.

10201020008 is a deficient number, since it is larger than the sum of its proper divisors (8925892522).

10201020008 is a wasteful number, since it uses less digits than its factorization.

10201020008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275127507 (or 1275127503 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10201020008 its reverse (80002010201), we get a palindrome (90203030209).

The spelling of 10201020008 in words is "ten billion, two hundred one million, twenty thousand, eight".