201101011100 has 288 divisors, whose sum is σ = 502046366976. Its totient is φ = 69272985600.

The previous prime is 201101011093. The next prime is 201101011123. The reversal of 201101011100 is 1110101102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 243168887 + ... + 243169713.

It is an arithmetic number, because the mean of its divisors is an integer number (1743216552).

Almost surely, 2^201101011100 is an apocalyptic number.

201101011100 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 201101011100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251023183488).

201101011100 is an abundant number, since it is smaller than the sum of its proper divisors (300945355876).

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

201101011100 is a wasteful number, since it uses less digits than its factorization.

201101011100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045 (or 1038 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 201101011100 its reverse (1110101102), we get a palindrome (202211112202).

The spelling of 201101011100 in words is "two hundred one billion, one hundred one million, eleven thousand, one hundred".