20011010099 has 16 divisors (see below), whose sum is σ = 20817151200. Its totient is φ = 19212931584.

The previous prime is 20011010087. The next prime is 20011010161. The reversal of 20011010099 is 99001011002.

It is a cyclic number.

It is not a de Polignac number, because 20011010099 - 2¹⁶ = 20010944563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20011010009) 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, 3992507 + ... + 3997515.

It is an arithmetic number, because the mean of its divisors is an integer number (1301071950).

Almost surely, 2^20011010099 is an apocalyptic number.

20011010099 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

20011010099 is a deficient number, since it is larger than the sum of its proper divisors (806141101).

20011010099 is a wasteful number, since it uses less digits than its factorization.

20011010099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5782.

The product of its (nonzero) digits is 162, while the sum is 23.

The spelling of 20011010099 in words is "twenty billion, eleven million, ten thousand, ninety-nine".