1021320096 has 24 divisors (see below), whose sum is σ = 2680965504. Its totient is φ = 340440000.

The previous prime is 1021320089. The next prime is 1021320107. The reversal of 1021320096 is 6900231201.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5319280 + ... + 5319471.

It is an arithmetic number, because the mean of its divisors is an integer number (111706896).

Almost surely, 2^1021320096 is an apocalyptic number.

1021320096 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1021320096 is an abundant number, since it is smaller than the sum of its proper divisors (1659645408).

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

1021320096 is a wasteful number, since it uses less digits than its factorization.

1021320096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10638764 (or 10638756 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1021320096 is about 31958.0990673726. The cubic root of 1021320096 is about 1007.0567833372.

Adding to 1021320096 its reverse (6900231201), we get a palindrome (7921551297).

The spelling of 1021320096 in words is "one billion, twenty-one million, three hundred twenty thousand, ninety-six".