1002000111100 has 72 divisors (see below), whose sum is σ = 2274764280768. Its totient is φ = 382704691200.

The previous prime is 1002000111097. The next prime is 1002000111103. The reversal of 1002000111100 is 11110002001.

It is an interprime number because it is at equal distance from previous prime (1002000111097) and next prime (1002000111103).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002000111103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2407197 + ... + 2792596.

It is an arithmetic number, because the mean of its divisors is an integer number (31593948344).

Almost surely, 2^{1002000111100} is an apocalyptic number.

1002000111100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002000111100 is an abundant number, since it is smaller than the sum of its proper divisors (1272764169668).

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

1002000111100 is a wasteful number, since it uses less digits than its factorization.

1002000111100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5199895 (or 5199888 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 1002000111100 its reverse (11110002001), we get a palindrome (1013110113101).

The spelling of 1002000111100 in words is "one trillion, two billion, one hundred eleven thousand, one hundred".