100010120 has 32 divisors (see below), whose sum is σ = 257169600.
Its totient is φ = 34289088.
The previous prime is 100010107. The next prime is 100010143. The reversal of 100010120 is 21010001.
Adding to 100010120 its reverse (21010001), we get a palindrome (121020121).
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (5).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178310 + ... + 178869.
It is an arithmetic number, because the mean of its divisors is an integer number (8036550).
Almost surely, 2100010120 is an apocalyptic number.
100010120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
100010120 is an abundant number, since it is smaller than the sum of its proper divisors (157159480).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
100010120 is a wasteful number, since it uses less digits than its factorization.
100010120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 357197 (or 357193 counting only the distinct ones).
The product of its (nonzero) digits is 2, while the sum is 5.
The square root of 100010120 is about 10000.5059871988.
The cubic root of 100010120 is about 464.1745404595.
The spelling of 100010120 in words is "one hundred million, ten thousand, one hundred twenty".