20001011111108 has 12 divisors (see below), whose sum is σ = 35002200153900. Its totient is φ = 10000382495712.

The previous prime is 20001011111101. The next prime is 20001011111143. The reversal of 20001011111108 is 80111111010002.

It can be written as a sum of positive squares in 2 ways, for example, as 8152669562944 + 11848341548164 = 2855288^2 + 3442142^2 .

It is not an unprimeable number, because it can be changed into a prime (20001011111101) 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, 30398783 + ... + 31049766.

It is an arithmetic number, because the mean of its divisors is an integer number (2916850012825).

Almost surely, 2^{20001011111108} is an apocalyptic number.

It is an amenable number.

20001011111108 is a deficient number, since it is larger than the sum of its proper divisors (15001189042792).

20001011111108 is a wasteful number, since it uses less digits than its factorization.

20001011111108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61529926 (or 61529924 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

The spelling of 20001011111108 in words is "twenty trillion, one billion, eleven million, one hundred eleven thousand, one hundred eight".