101128 has 8 divisors (see below), whose sum is σ = 189630. Its totient is φ = 50560.

The previous prime is 101119. The next prime is 101141. The reversal of 101128 is 821101.

It can be written as a sum of positive squares in only one way, i.e., 101124 + 4 = 318^2 + 2^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6313 + ... + 6328.

2¹⁰¹¹²⁸ is an apocalyptic number.

It is an amenable number.

101128 is a deficient number, since it is larger than the sum of its proper divisors (88502).

101128 is a wasteful number, since it uses less digits than its factorization.

101128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12647 (or 12643 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 101128 is about 318.0062892460. The cubic root of 101128 is about 46.5897599486.

Adding to 101128 its reverse (821101), we get a palindrome (922229).

The spelling of 101128 in words is "one hundred one thousand, one hundred twenty-eight".