1020020002 has 8 divisors (see below), whose sum is σ = 1530668736. Its totient is φ = 509797092.

The previous prime is 1020019969. The next prime is 1020020041. The reversal of 1020020002 is 2000200201.

It is a happy number.

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, 100398 + ... + 110089.

It is an arithmetic number, because the mean of its divisors is an integer number (191333592).

Almost surely, 2^1020020002 is an apocalyptic number.

1020020002 is a deficient number, since it is larger than the sum of its proper divisors (510648734).

1020020002 is a wasteful number, since it uses less digits than its factorization.

1020020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212912.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 1020020002 is about 31937.7519872642. The cubic root of 1020020002 is about 1006.6292894084.

Adding to 1020020002 its reverse (2000200201), we get a palindrome (3020220203).

The spelling of 1020020002 in words is "one billion, twenty million, twenty thousand, two".