20011102000 has 80 divisors (see below), whose sum is σ = 50055501600. Its totient is φ = 7728403200.

The previous prime is 20011101983. The next prime is 20011102073. The reversal of 20011102000 is 20111002.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114510 + ... + 230509.

It is an arithmetic number, because the mean of its divisors is an integer number (625693770).

Almost surely, 2^20011102000 is an apocalyptic number.

20011102000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20011102000 is an abundant number, since it is smaller than the sum of its proper divisors (30044399600).

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

20011102000 is a wasteful number, since it uses less digits than its factorization.

20011102000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345071 (or 345055 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 20011102000 its reverse (20111002), we get a palindrome (20031213002).

The spelling of 20011102000 in words is "twenty billion, eleven million, one hundred two thousand".