1012331112 has 128 divisors (see below), whose sum is σ = 2836901760. Its totient is φ = 299013120.

The previous prime is 1012331107. The next prime is 1012331119. The reversal of 1012331112 is 2111332101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1012331091 and 1012331100.

It is not an unprimeable number, because it can be changed into a prime (1012331119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 817758 + ... + 818994.

It is an arithmetic number, because the mean of its divisors is an integer number (22163295).

Almost surely, 2^1012331112 is an apocalyptic number.

1012331112 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 1012331112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1418450880).

1012331112 is an abundant number, since it is smaller than the sum of its proper divisors (1824570648).

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

1012331112 is a wasteful number, since it uses less digits than its factorization.

1012331112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363 (or 1359 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1012331112 is about 31817.1512238289. The cubic root of 1012331112 is about 1004.0935903189.

Adding to 1012331112 its reverse (2111332101), we get a palindrome (3123663213).

The spelling of 1012331112 in words is "one billion, twelve million, three hundred thirty-one thousand, one hundred twelve".