101127240 has 48 divisors (see below), whose sum is σ = 328664700. Its totient is φ = 26967168.

The previous prime is 101127211. The next prime is 101127241. The reversal of 101127240 is 42721101.

It can be written as a sum of positive squares in 2 ways, for example, as 91355364 + 9771876 = 9558^2 + 3126^2 .

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

It is not an unprimeable number, because it can be changed into a prime (101127241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140095 + ... + 140814.

Almost surely, 2^101127240 is an apocalyptic number.

101127240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101127240 is an abundant number, since it is smaller than the sum of its proper divisors (227537460).

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

101127240 is a wasteful number, since it uses less digits than its factorization.

101127240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280926 (or 280919 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 101127240 is about 10056.2040552089. The cubic root of 101127240 is about 465.8964323740.

Adding to 101127240 its reverse (42721101), we get a palindrome (143848341).

The spelling of 101127240 in words is "one hundred one million, one hundred twenty-seven thousand, two hundred forty".