101128530 has 16 divisors (see below), whose sum is σ = 242708544. Its totient is φ = 26967600.

The previous prime is 101128523. The next prime is 101128543. The reversal of 101128530 is 35821101.

It is a junction number, because it is equal to n+sod(n) for n = 101128497 and 101128506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1685446 + ... + 1685505.

It is an arithmetic number, because the mean of its divisors is an integer number (15169284).

Almost surely, 2^101128530 is an apocalyptic number.

101128530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101128530 is an abundant number, since it is smaller than the sum of its proper divisors (141580014).

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

101128530 is a wasteful number, since it uses less digits than its factorization.

101128530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3370961.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 101128530 is about 10056.2681945143. The cubic root of 101128530 is about 465.8984133893.

Adding to 101128530 its reverse (35821101), we get a palindrome (136949631).

The spelling of 101128530 in words is "one hundred one million, one hundred twenty-eight thousand, five hundred thirty".