1002100011100 has 72 divisors (see below), whose sum is σ = 2269368501120. Its totient is φ = 383367314880.

The previous prime is 1002100011097. The next prime is 1002100011119. The reversal of 1002100011100 is 11100012001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24955639 + ... + 24995761.

It is an arithmetic number, because the mean of its divisors is an integer number (31519006960).

Almost surely, 2^{1002100011100} is an apocalyptic number.

1002100011100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002100011100 is an abundant number, since it is smaller than the sum of its proper divisors (1267268490020).

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

1002100011100 is a wasteful number, since it uses less digits than its factorization.

1002100011100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51019 (or 51012 counting only the distinct ones).

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

Adding to 1002100011100 its reverse (11100012001), we get a palindrome (1013200023101).

Subtracting from 1002100011100 its reverse (11100012001), we obtain a palindrome (990999999099).

The spelling of 1002100011100 in words is "one trillion, two billion, one hundred million, eleven thousand, one hundred".