201100323400 has 48 divisors (see below), whose sum is σ = 470696296500. Its totient is φ = 79900250880.

The previous prime is 201100323367. The next prime is 201100323407. The reversal of 201100323400 is 4323001102.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 3585853924 + 197514469476 = 59882^2 + 444426^2 .

It is not an unprimeable number, because it can be changed into a prime (201100323407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3344367 + ... + 3403966.

Almost surely, 2^201100323400 is an apocalyptic number.

201100323400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201100323400 is an abundant number, since it is smaller than the sum of its proper divisors (269595973100).

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

201100323400 is a wasteful number, since it uses less digits than its factorization.

201100323400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6748498 (or 6748489 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 201100323400 its reverse (4323001102), we get a palindrome (205423324502).

The spelling of 201100323400 in words is "two hundred one billion, one hundred million, three hundred twenty-three thousand, four hundred".