99990001011001 has 16 divisors (see below), whose sum is σ = 106634708712000. Its totient is φ = 93430080949248.

The previous prime is 99990001010993. The next prime is 99990001011007. The reversal of 99990001011001 is 10011010009999.

It is a cyclic number.

It is not a de Polignac number, because 99990001011001 - 2³ = 99990001010993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99990001011007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249448326 + ... + 249848848.

It is an arithmetic number, because the mean of its divisors is an integer number (6664669294500).

Almost surely, 2^{99990001011001} is an apocalyptic number.

It is an amenable number.

99990001011001 is a deficient number, since it is larger than the sum of its proper divisors (6644707700999).

99990001011001 is a wasteful number, since it uses less digits than its factorization.

99990001011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506328.

The product of its (nonzero) digits is 6561, while the sum is 40.

The spelling of 99990001011001 in words is "ninety-nine trillion, nine hundred ninety billion, one million, eleven thousand, one".