100120230 has 144 divisors (see below), whose sum is σ = 307947744. Its totient is φ = 22498560.

The previous prime is 100120213. The next prime is 100120231. The reversal of 100120230 is 32021001.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100120231) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 321775 + ... + 322085.

It is an arithmetic number, because the mean of its divisors is an integer number (2138526).

Almost surely, 2^100120230 is an apocalyptic number.

100120230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 100120230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153973872).

100120230 is an abundant number, since it is smaller than the sum of its proper divisors (207827514).

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

100120230 is a wasteful number, since it uses less digits than its factorization.

100120230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 401 counting only the distinct ones).

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

The square root of 100120230 is about 10006.0096941788. The cubic root of 100120230 is about 464.3448282691.

Adding to 100120230 its reverse (32021001), we get a palindrome (132141231).

The spelling of 100120230 in words is "one hundred million, one hundred twenty thousand, two hundred thirty".