201230100 has 54 divisors (see below), whose sum is σ = 630747390. Its totient is φ = 53661120.

The previous prime is 201230093. The next prime is 201230129. The reversal of 201230100 is 1032102.

It is a happy number.

201230100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 10458756 + 190771344 = 3234^2 + 13812^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 110895 + ... + 112694.

Almost surely, 2^201230100 is an apocalyptic number.

201230100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201230100 is an abundant number, since it is smaller than the sum of its proper divisors (429517290).

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

201230100 is a wasteful number, since it uses less digits than its factorization.

201230100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223609 (or 223599 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 201230100 is about 14185.5595589318. The cubic root of 201230100 is about 586.0000427106. Note that the first 4 decimals are identical.

Adding to 201230100 its reverse (1032102), we get a palindrome (202262202).

The spelling of 201230100 in words is "two hundred one million, two hundred thirty thousand, one hundred".