100201830 has 16 divisors (see below), whose sum is σ = 240484464. Its totient is φ = 26720480.

The previous prime is 100201817. The next prime is 100201831. The reversal of 100201830 is 38102001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100201831) 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 7 ways as a sum of consecutive naturals, for example, 1670001 + ... + 1670060.

It is an arithmetic number, because the mean of its divisors is an integer number (15030279).

Almost surely, 2^100201830 is an apocalyptic number.

100201830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100201830 is an abundant number, since it is smaller than the sum of its proper divisors (140282634).

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

100201830 is a wasteful number, since it uses less digits than its factorization.

100201830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3340071.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 100201830 is about 10010.0864132134. The cubic root of 100201830 is about 464.4709441360.

Adding to 100201830 its reverse (38102001), we get a palindrome (138303831).

It can be divided in two parts, 100 and 201830, that added together give a triangular number (201930 = T₆₃₅).

The spelling of 100201830 in words is "one hundred million, two hundred one thousand, eight hundred thirty".