101020112 has 20 divisors (see below), whose sum is σ = 206028480. Its totient is φ = 47851488.

The previous prime is 101020111. The next prime is 101020133. The reversal of 101020112 is 211020101.

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

It is a self number, because there is not a number n which added to its sum of digits gives 101020112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101020111) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 165848 + ... + 166455.

It is an arithmetic number, because the mean of its divisors is an integer number (10301424).

Almost surely, 2^101020112 is an apocalyptic number.

It is an amenable number.

101020112 is an abundant number, since it is smaller than the sum of its proper divisors (105008368).

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

101020112 is a wasteful number, since it uses less digits than its factorization.

101020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332330 (or 332324 counting only the distinct ones).

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

The square root of 101020112 is about 10050.8761807118. The cubic root of 101020112 is about 465.7318602058.

Adding to 101020112 its reverse (211020101), we get a palindrome (312040213).

The spelling of 101020112 in words is "one hundred one million, twenty thousand, one hundred twelve".