11243001440 has 48 divisors (see below), whose sum is σ = 28976285520. Its totient is φ = 4088363520.

The previous prime is 11243001421. The next prime is 11243001449. The reversal of 11243001440 is 4410034211.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11243001449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3192275 + ... + 3195794.

It is an arithmetic number, because the mean of its divisors is an integer number (603672615).

Almost surely, 2^11243001440 is an apocalyptic number.

11243001440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11243001440 is an abundant number, since it is smaller than the sum of its proper divisors (17733284080).

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

11243001440 is a wasteful number, since it uses less digits than its factorization.

11243001440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6388095 (or 6388087 counting only the distinct ones).

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

Adding to 11243001440 its reverse (4410034211), we get a palindrome (15653035651).

The spelling of 11243001440 in words is "eleven billion, two hundred forty-three million, one thousand, four hundred forty".