201011100 has 36 divisors (see below), whose sum is σ = 581592984. Its totient is φ = 53602880.

The previous prime is 201011059. The next prime is 201011113. The reversal of 201011100 is 1110102.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 334719 + ... + 335318.

Almost surely, 2^201011100 is an apocalyptic number.

201011100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201011100 is an abundant number, since it is smaller than the sum of its proper divisors (380581884).

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

201011100 is a wasteful number, since it uses less digits than its factorization.

201011100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670054 (or 670047 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 6.

The square root of 201011100 is about 14177.8383401702. The cubic root of 201011100 is about 585.7873830189.

Adding to 201011100 its reverse (1110102), we get a palindrome (202121202).

The spelling of 201011100 in words is "two hundred one million, eleven thousand, one hundred".