201000111000 has 128 divisors (see below), whose sum is σ = 675360504000. Its totient is φ = 49476940800.

The previous prime is 201000110999. The next prime is 201000111017. The reversal of 201000111000 is 111000102.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a self number, because there is not a number n which added to its sum of digits gives 201000111000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2537925 + ... + 2615924.

Almost surely, 2^201000111000 is an apocalyptic number.

201000111000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201000111000 is an abundant number, since it is smaller than the sum of its proper divisors (474360393000).

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

201000111000 is a wasteful number, since it uses less digits than its factorization.

201000111000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5153886 (or 5153872 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 201000111000 its reverse (111000102), we get a palindrome (201111111102).

The spelling of 201000111000 in words is "two hundred one billion, one hundred eleven thousand".