1020320002 has 8 divisors (see below), whose sum is σ = 1648209276. Its totient is φ = 470916912.

The previous prime is 1020319999. The next prime is 1020320027. The reversal of 1020320002 is 2000230201.

It can be written as a sum of positive squares in 2 ways, for example, as 854451361 + 165868641 = 29231^2 + 12879^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 19621513 + ... + 19621564.

Almost surely, 2^1020320002 is an apocalyptic number.

1020320002 is a deficient number, since it is larger than the sum of its proper divisors (627889274).

1020320002 is a wasteful number, since it uses less digits than its factorization.

1020320002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39243092.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 1020320002 is about 31942.4482781142. The cubic root of 1020320002 is about 1006.7279669458.

Adding to 1020320002 its reverse (2000230201), we get a palindrome (3020550203).

The spelling of 1020320002 in words is "one billion, twenty million, three hundred twenty thousand, two".