103102128 has 90 divisors (see below), whose sum is σ = 297119004. Its totient is φ = 33374592.

The previous prime is 103102081. The next prime is 103102171. The reversal of 103102128 is 821201301.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 103102128.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 196875 + ... + 197397.

Almost surely, 2^103102128 is an apocalyptic number.

103102128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103102128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148559502).

103102128 is an abundant number, since it is smaller than the sum of its proper divisors (194016876).

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

103102128 is a wasteful number, since it uses less digits than its factorization.

103102128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611 (or 565 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 103102128 is about 10153.9218039140. The cubic root of 103102128 is about 468.9096923636.

Adding to 103102128 its reverse (821201301), we get a palindrome (924303429).

The spelling of 103102128 in words is "one hundred three million, one hundred two thousand, one hundred twenty-eight".