128103116 has 12 divisors (see below), whose sum is σ = 224947632. Its totient is φ = 63832368.

The previous prime is 128103103. The next prime is 128103119. The reversal of 128103116 is 611301821.

It is a junction number, because it is equal to n+sod(n) for n = 128103091 and 128103100.

It is not an unprimeable number, because it can be changed into a prime (128103119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53480 + ... + 55823.

It is an arithmetic number, because the mean of its divisors is an integer number (18745636).

Almost surely, 2^128103116 is an apocalyptic number.

It is an amenable number.

128103116 is a deficient number, since it is larger than the sum of its proper divisors (96844516).

128103116 is a wasteful number, since it uses less digits than its factorization.

128103116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109600 (or 109598 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 128103116 is about 11318.2647079842. The cubic root of 128103116 is about 504.1037149033.

Adding to 128103116 its reverse (611301821), we get a palindrome (739404937).

The spelling of 128103116 in words is "one hundred twenty-eight million, one hundred three thousand, one hundred sixteen".