11501140240 has 20 divisors (see below), whose sum is σ = 26740151244. Its totient is φ = 4600456064.

The previous prime is 11501140223. The next prime is 11501140327. The reversal of 11501140240 is 4204110511.

It can be written as a sum of positive squares in 2 ways, for example, as 2144060416 + 9357079824 = 46304^2 + 96732^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71882047 + ... + 71882206.

Almost surely, 2^11501140240 is an apocalyptic number.

11501140240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11501140240 is an abundant number, since it is smaller than the sum of its proper divisors (15239011004).

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

11501140240 is a wasteful number, since it uses less digits than its factorization.

11501140240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143764266 (or 143764260 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 11501140240 its reverse (4204110511), we get a palindrome (15705250751).

The spelling of 11501140240 in words is "eleven billion, five hundred one million, one hundred forty thousand, two hundred forty".