1002003102 has 16 divisors (see below), whose sum is σ = 2226673680. Its totient is φ = 334001016.

The previous prime is 1002003089. The next prime is 1002003127. The reversal of 1002003102 is 2013002001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9277753 + ... + 9277860.

It is an arithmetic number, because the mean of its divisors is an integer number (139167105).

Almost surely, 2^1002003102 is an apocalyptic number.

1002003102 is an abundant number, since it is smaller than the sum of its proper divisors (1224670578).

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

1002003102 is a wasteful number, since it uses less digits than its factorization.

1002003102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18555624 (or 18555618 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1002003102 is about 31654.4325806039. The cubic root of 1002003102 is about 1000.6672553380.

Adding to 1002003102 its reverse (2013002001), we get a palindrome (3015005103).

The spelling of 1002003102 in words is "one billion, two million, three thousand, one hundred two".