11443131500 has 24 divisors (see below), whose sum is σ = 24991800288. Its totient is φ = 4577252400.

The previous prime is 11443131499. The next prime is 11443131503. The reversal of 11443131500 is 513134411.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11443131503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11442632 + ... + 11443631.

It is an arithmetic number, because the mean of its divisors is an integer number (1041325012).

Almost surely, 2^11443131500 is an apocalyptic number.

11443131500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11443131500 is an abundant number, since it is smaller than the sum of its proper divisors (13548668788).

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

11443131500 is a wasteful number, since it uses less digits than its factorization.

11443131500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22886282 (or 22886270 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 11443131500 its reverse (513134411), we get a palindrome (11956265911).

The spelling of 11443131500 in words is "eleven billion, four hundred forty-three million, one hundred thirty-one thousand, five hundred".