1020263112 has 96 divisors (see below), whose sum is σ = 3036739680. Its totient is φ = 306881280.

The previous prime is 1020263017. The next prime is 1020263131. The reversal of 1020263112 is 2113620201.

1020263112 is a `hidden beast` number, since 1 + 0 + 20 + 2 + 631 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103803 + ... + 113205.

It is an arithmetic number, because the mean of its divisors is an integer number (31632705).

Almost surely, 2^1020263112 is an apocalyptic number.

1020263112 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 1020263112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1518369840).

1020263112 is an abundant number, since it is smaller than the sum of its proper divisors (2016476568).

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

1020263112 is a wasteful number, since it uses less digits than its factorization.

1020263112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9563 (or 9556 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1020263112 is about 31941.5577578803. The cubic root of 1020263112 is about 1006.7092558818.

Adding to 1020263112 its reverse (2113620201), we get a palindrome (3133883313).

The spelling of 1020263112 in words is "one billion, twenty million, two hundred sixty-three thousand, one hundred twelve".