1012331320 has 256 divisors, whose sum is σ = 3097543680. Its totient is φ = 287539200.

The previous prime is 1012331303. The next prime is 1012331339. The reversal of 1012331320 is 231332101.

It is a junction number, because it is equal to n+sod(n) for n = 1012331294 and 1012331303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5245144 + ... + 5245336.

It is an arithmetic number, because the mean of its divisors is an integer number (12099780).

Almost surely, 2^1012331320 is an apocalyptic number.

1012331320 is a gapful number since it is divisible by the number (10) 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 1012331320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1548771840).

1012331320 is an abundant number, since it is smaller than the sum of its proper divisors (2085212360).

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

1012331320 is a wasteful number, since it uses less digits than its factorization.

1012331320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1012331320 is about 31817.1544925061. The cubic root of 1012331320 is about 1004.0936590880.

Adding to 1012331320 its reverse (231332101), we get a palindrome (1243663421).

The spelling of 1012331320 in words is "one billion, twelve million, three hundred thirty-one thousand, three hundred twenty".