101200100120 has 32 divisors (see below), whose sum is σ = 260228829600. Its totient is φ = 34697177088.

The previous prime is 101200100051. The next prime is 101200100137. The reversal of 101200100120 is 21001002101.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a junction number, because it is equal to n+sod(n) for n = 101200100098 and 101200100107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180714185 + ... + 180714744.

It is an arithmetic number, because the mean of its divisors is an integer number (8132150925).

Almost surely, 2^101200100120 is an apocalyptic number.

101200100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101200100120 is an abundant number, since it is smaller than the sum of its proper divisors (159028729480).

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

101200100120 is a wasteful number, since it uses less digits than its factorization.

101200100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361428947 (or 361428943 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 101200100120 its reverse (21001002101), we get a palindrome (122201102221).

The spelling of 101200100120 in words is "one hundred one billion, two hundred million, one hundred thousand, one hundred twenty".