9990102001 has 8 divisors (see below), whose sum is σ = 11006198208. Its totient is φ = 8991990000.

The previous prime is 9990101999. The next prime is 9990102007. The reversal of 9990102001 is 1002010999.

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 9990102001 - 2¹ = 9990101999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9990102007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4494885 + ... + 4497106.

It is an arithmetic number, because the mean of its divisors is an integer number (1375774776).

Almost surely, 2^9990102001 is an apocalyptic number.

It is an amenable number.

9990102001 is a deficient number, since it is larger than the sum of its proper divisors (1016096207).

9990102001 is a wasteful number, since it uses less digits than its factorization.

9990102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8992103.

The product of its (nonzero) digits is 1458, while the sum is 31.

The square root of 9990102001 is about 99950.4977526375. The cubic root of 9990102001 is about 2153.7236356328.

The spelling of 9990102001 in words is "nine billion, nine hundred ninety million, one hundred two thousand, one".