20111001102008 has 32 divisors (see below), whose sum is σ = 40488593787360. Its totient is φ = 9330704732160.

The previous prime is 20111001102007. The next prime is 20111001102113. The reversal of 20111001102008 is 80020110011102.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111001102007) 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, 1041363641 + ... + 1041382952.

It is an arithmetic number, because the mean of its divisors is an integer number (1265268555855).

Almost surely, 2^{20111001102008} is an apocalyptic number.

It is an amenable number.

20111001102008 is an abundant number, since it is smaller than the sum of its proper divisors (20377592685352).

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

20111001102008 is a wasteful number, since it uses less digits than its factorization.

20111001102008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2082746687 (or 2082746683 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

The spelling of 20111001102008 in words is "twenty trillion, one hundred eleven billion, one million, one hundred two thousand, eight".