11124131240 has 32 divisors (see below), whose sum is σ = 26117527680. Its totient is φ = 4256188992.

The previous prime is 11124131231. The next prime is 11124131269. The reversal of 11124131240 is 4213142111.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6044804 + ... + 6046643.

It is an arithmetic number, because the mean of its divisors is an integer number (816172740).

Almost surely, 2^11124131240 is an apocalyptic number.

11124131240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11124131240 is an abundant number, since it is smaller than the sum of its proper divisors (14993396440).

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

11124131240 is a wasteful number, since it uses less digits than its factorization.

11124131240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12091481 (or 12091477 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 11124131240 its reverse (4213142111), we get a palindrome (15337273351).

The spelling of 11124131240 in words is "eleven billion, one hundred twenty-four million, one hundred thirty-one thousand, two hundred forty".