1020100112 has 20 divisors (see below), whose sum is σ = 1996822716. Its totient is φ = 504791040.

The previous prime is 1020100099. The next prime is 1020100171. The reversal of 1020100112 is 2110010201.

It can be written as a sum of positive squares in 2 ways, for example, as 348046336 + 672053776 = 18656^2 + 25924^2 .

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 1020100112.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327089 + ... + 330192.

Almost surely, 2^1020100112 is an apocalyptic number.

It is an amenable number.

1020100112 is a deficient number, since it is larger than the sum of its proper divisors (976722604).

1020100112 is an equidigital number, since it uses as much as digits as its factorization.

1020100112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657386 (or 657380 counting only the distinct ones).

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

The square root of 1020100112 is about 31939.0061210427. The cubic root of 1020100112 is about 1006.6556414934.

Adding to 1020100112 its reverse (2110010201), we get a palindrome (3130110313).

The spelling of 1020100112 in words is "one billion, twenty million, one hundred thousand, one hundred twelve".