1002020102 has 16 divisors (see below), whose sum is σ = 1515374352. Its totient is φ = 496911360.

The previous prime is 1002020087. The next prime is 1002020177. The reversal of 1002020102 is 2010202001.

It is a self number, because there is not a number n which added to its sum of digits gives 1002020102.

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 7 ways as a sum of consecutive naturals, for example, 130202 + ... + 137682.

It is an arithmetic number, because the mean of its divisors is an integer number (94710897).

Almost surely, 2^1002020102 is an apocalyptic number.

1002020102 is a deficient number, since it is larger than the sum of its proper divisors (513354250).

1002020102 is a wasteful number, since it uses less digits than its factorization.

1002020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8023.

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

The square root of 1002020102 is about 31654.7011042594. The cubic root of 1002020102 is about 1000.6729144180.

Adding to 1002020102 its reverse (2010202001), we get a palindrome (3012222103).

It can be divided in two parts, 100 and 2020102, that added together give a palindrome (2020202).

The spelling of 1002020102 in words is "one billion, two million, twenty thousand, one hundred two".