20011030211999 has 8 divisors (see below), whose sum is σ = 21120714835440. Its totient is φ = 18906992839296.

The previous prime is 20011030211993. The next prime is 20011030212007. The reversal of 20011030211999 is 99911203011002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20011030211999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011030211993) 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, 1411805402 + ... + 1411819575.

It is an arithmetic number, because the mean of its divisors is an integer number (2640089354430).

Almost surely, 2^{20011030211999} is an apocalyptic number.

20011030211999 is a deficient number, since it is larger than the sum of its proper divisors (1109684623441).

20011030211999 is a wasteful number, since it uses less digits than its factorization.

20011030211999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2823625369.

The product of its (nonzero) digits is 8748, while the sum is 38.

The spelling of 20011030211999 in words is "twenty trillion, eleven billion, thirty million, two hundred eleven thousand, nine hundred ninety-nine".