1032321312 has 144 divisors (see below), whose sum is σ = 3289470912. Its totient is φ = 304335360.

The previous prime is 1032321307. The next prime is 1032321313. The reversal of 1032321312 is 2131232301.

1032321312 is a `hidden beast` number, since 1 + 0 + 32 + 321 + 312 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is not an unprimeable number, because it can be changed into a prime (1032321313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112813 + ... + 121619.

It is an arithmetic number, because the mean of its divisors is an integer number (22843548).

Almost surely, 2^1032321312 is an apocalyptic number.

1032321312 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 1032321312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1644735456).

1032321312 is an abundant number, since it is smaller than the sum of its proper divisors (2257149600).

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

1032321312 is a wasteful number, since it uses less digits than its factorization.

1032321312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8871 (or 8860 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1032321312 is about 32129.7574220535. The cubic root of 1032321312 is about 1010.6597369202.

Adding to 1032321312 its reverse (2131232301), we get a palindrome (3163553613).

The spelling of 1032321312 in words is "one billion, thirty-two million, three hundred twenty-one thousand, three hundred twelve".