11403131320 has 32 divisors (see below), whose sum is σ = 29322338400. Its totient is φ = 3909644928.

The previous prime is 11403131317. The next prime is 11403131353. The reversal of 11403131320 is 2313130411.

It is a congruent number.

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, 20362455 + ... + 20363014.

It is an arithmetic number, because the mean of its divisors is an integer number (916323075).

Almost surely, 2^11403131320 is an apocalyptic number.

11403131320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11403131320 is an abundant number, since it is smaller than the sum of its proper divisors (17919207080).

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

11403131320 is a wasteful number, since it uses less digits than its factorization.

11403131320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40725487 (or 40725483 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11403131320 its reverse (2313130411), we get a palindrome (13716261731).

Subtracting from 11403131320 its reverse (2313130411), we obtain a palindrome (9090000909).

The spelling of 11403131320 in words is "eleven billion, four hundred three million, one hundred thirty-one thousand, three hundred twenty".