1001200011100 has 108 divisors (see below), whose sum is σ = 2308814683000. Its totient is φ = 376776576000.

The previous prime is 1001200011061. The next prime is 1001200011101. The reversal of 1001200011100 is 11100021001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001200011101) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 101116150 + ... + 101126050.

Almost surely, 2^{1001200011100} is an apocalyptic number.

1001200011100 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 1001200011100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1154407341500).

1001200011100 is an abundant number, since it is smaller than the sum of its proper divisors (1307614671900).

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

1001200011100 is a wasteful number, since it uses less digits than its factorization.

1001200011100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13448 (or 13424 counting only the distinct ones).

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

Adding to 1001200011100 its reverse (11100021001), we get a palindrome (1012300032101).

Subtracting from 1001200011100 its reverse (11100021001), we obtain a palindrome (990099990099).

The spelling of 1001200011100 in words is "one trillion, one billion, two hundred million, eleven thousand, one hundred".