1021130112 has 64 divisors (see below), whose sum is σ = 2722959360. Its totient is φ = 339048960.

The previous prime is 1021130081. The next prime is 1021130119. The reversal of 1021130112 is 2110311201.

1021130112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021130119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95937 + ... + 106047.

It is an arithmetic number, because the mean of its divisors is an integer number (42546240).

Almost surely, 2^1021130112 is an apocalyptic number.

1021130112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021130112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1361479680).

1021130112 is an abundant number, since it is smaller than the sum of its proper divisors (1701829248).

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

1021130112 is a wasteful number, since it uses less digits than its factorization.

1021130112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10391 (or 10379 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1021130112 is about 31955.1265370676. The cubic root of 1021130112 is about 1006.9943358763.

Adding to 1021130112 its reverse (2110311201), we get a palindrome (3131441313).

The spelling of 1021130112 in words is "one billion, twenty-one million, one hundred thirty thousand, one hundred twelve".