20010111108 has 48 divisors (see below), whose sum is σ = 50887655616. Its totient is φ = 6082773120.

The previous prime is 20010111091. The next prime is 20010111139. The reversal of 20010111108 is 80111101002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 759763 + ... + 785658.

It is an arithmetic number, because the mean of its divisors is an integer number (1060159492).

Almost surely, 2^20010111108 is an apocalyptic number.

It is an amenable number.

20010111108 is an abundant number, since it is smaller than the sum of its proper divisors (30877544508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20010111108 is a wasteful number, since it uses less digits than its factorization.

20010111108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545524 (or 1545522 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

The spelling of 20010111108 in words is "twenty billion, ten million, one hundred eleven thousand, one hundred eight".