11403124040 has 64 divisors (see below), whose sum is σ = 31987992960. Its totient is φ = 3554219520.

The previous prime is 11403124013. The next prime is 11403124043. The reversal of 11403124040 is 4042130411.

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

It is not an unprimeable number, because it can be changed into a prime (11403124043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1848077 + ... + 1854236.

It is an arithmetic number, because the mean of its divisors is an integer number (499812390).

Almost surely, 2^11403124040 is an apocalyptic number.

11403124040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11403124040 is an abundant number, since it is smaller than the sum of its proper divisors (20584868920).

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

11403124040 is a wasteful number, since it uses less digits than its factorization.

11403124040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3702342 (or 3702338 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11403124040 its reverse (4042130411), we get a palindrome (15445254451).

The spelling of 11403124040 in words is "eleven billion, four hundred three million, one hundred twenty-four thousand, forty".