11403112420 has 144 divisors (see below), whose sum is σ = 28378667520. Its totient is φ = 3837044736.

The previous prime is 11403112363. The next prime is 11403112421. The reversal of 11403112420 is 2421130411.

It is not an unprimeable number, because it can be changed into a prime (11403112421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13212909 + ... + 13213771.

It is an arithmetic number, because the mean of its divisors is an integer number (197074080).

Almost surely, 2^11403112420 is an apocalyptic number.

11403112420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11403112420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14189333760).

11403112420 is an abundant number, since it is smaller than the sum of its proper divisors (16975555100).

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

11403112420 is a wasteful number, since it uses less digits than its factorization.

11403112420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122 (or 1113 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 11403112420 its reverse (2421130411), we get a palindrome (13824242831).

The spelling of 11403112420 in words is "eleven billion, four hundred three million, one hundred twelve thousand, four hundred twenty".