128002102 has 16 divisors (see below), whose sum is σ = 197996400. Its totient is φ = 62032672.

The previous prime is 128002097. The next prime is 128002109. The reversal of 128002102 is 201200821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128002109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1524 + ... + 16072.

It is an arithmetic number, because the mean of its divisors is an integer number (12374775).

Almost surely, 2^128002102 is an apocalyptic number.

128002102 is a deficient number, since it is larger than the sum of its proper divisors (69994298).

128002102 is a wasteful number, since it uses less digits than its factorization.

128002102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14687.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 128002102 is about 11313.8013947568. The cubic root of 128002102 is about 503.9711786450.

Adding to 128002102 its reverse (201200821), we get a palindrome (329202923).

The spelling of 128002102 in words is "one hundred twenty-eight million, two thousand, one hundred two".