201110002000 has 80 divisors (see below), whose sum is σ = 498144772944. Its totient is φ = 78481920000.

The previous prime is 201110001979. The next prime is 201110002043. The reversal of 201110002000 is 200011102.

It can be written as a sum of positive squares in 8 ways, for example, as 75422735424 + 125687266576 = 274632^2 + 354524^2 .

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

It is a congruent number.

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, 1144281 + ... + 1308280.

Almost surely, 2^201110002000 is an apocalyptic number.

201110002000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201110002000 is an abundant number, since it is smaller than the sum of its proper divisors (297034770944).

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

201110002000 is a wasteful number, since it uses less digits than its factorization.

201110002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2452625 (or 2452609 counting only the distinct ones).

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

Adding to 201110002000 its reverse (200011102), we get a palindrome (201310013102).

The spelling of 201110002000 in words is "two hundred one billion, one hundred ten million, two thousand".