2011442031100 has 72 divisors (see below), whose sum is σ = 4391295501600. Its totient is φ = 799706603520.

The previous prime is 2011442031097. The next prime is 2011442031133. The reversal of 2011442031100 is 11302441102.

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, 19390572 + ... + 19494028.

It is an arithmetic number, because the mean of its divisors is an integer number (60990215300).

Almost surely, 2^{2011442031100} is an apocalyptic number.

2011442031100 is a gapful number since it is divisible by the number (20) 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 2011442031100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2195647750800).

2011442031100 is an abundant number, since it is smaller than the sum of its proper divisors (2379853470500).

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

2011442031100 is a wasteful number, since it uses less digits than its factorization.

2011442031100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104647 (or 104640 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2011442031100 its reverse (11302441102), we get a palindrome (2022744472202).

The spelling of 2011442031100 in words is "two trillion, eleven billion, four hundred forty-two million, thirty-one thousand, one hundred".