1110002000 has 80 divisors (see below), whose sum is σ = 2746615872. Its totient is φ = 433641600.

The previous prime is 1110001993. The next prime is 1110002041. The reversal of 1110002000 is 2000111.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (5).

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, 79547 + ... + 92453.

Almost surely, 2^1110002000 is an apocalyptic number.

1110002000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1110002000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1373307936).

1110002000 is an abundant number, since it is smaller than the sum of its proper divisors (1636613872).

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

1110002000 is a wasteful number, since it uses less digits than its factorization.

1110002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12973 (or 12957 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 1110002000 is about 33316.6925129131. The cubic root of 1110002000 is about 1035.3994273092.

Adding to 1110002000 its reverse (2000111), we get a palindrome (1112002111).

The spelling of 1110002000 in words is "one billion, one hundred ten million, two thousand".