1020112 has 20 divisors (see below), whose sum is σ = 1998880. Its totient is φ = 504288.

The previous prime is 1020109. The next prime is 1020113. The reversal of 1020112 is 2110201.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1020095 and 1020104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1339 + ... + 1957.

It is an arithmetic number, because the mean of its divisors is an integer number (99944).

2^1020112 is an apocalyptic number.

It is an amenable number.

1020112 is a deficient number, since it is larger than the sum of its proper divisors (978768).

1020112 is a wasteful number, since it uses less digits than its factorization.

1020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730 (or 724 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1020112 is about 1010.0059405766. The cubic root of 1020112 is about 100.6659551919.

Adding to 1020112 its reverse (2110201), we get a palindrome (3130313).

The spelling of 1020112 in words is "one million, twenty thousand, one hundred twelve".