9990001111001 has 4 divisors (see below), whose sum is σ = 9994214525904. Its totient is φ = 9985787696100.

The previous prime is 9990001110997. The next prime is 9990001111031. The reversal of 9990001111001 is 1001111000999.

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 9990001111001 - 2² = 9990001110997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9990001111031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2106703895 + ... + 2106708636.

It is an arithmetic number, because the mean of its divisors is an integer number (2498553631476).

Almost surely, 2^{9990001111001} is an apocalyptic number.

It is an amenable number.

9990001111001 is a deficient number, since it is larger than the sum of its proper divisors (4213414903).

9990001111001 is a wasteful number, since it uses less digits than its factorization.

9990001111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4213414902.

The product of its (nonzero) digits is 729, while the sum is 32.

The spelling of 9990001111001 in words is "nine trillion, nine hundred ninety billion, one million, one hundred eleven thousand, one".