11503202240 has 56 divisors (see below), whose sum is σ = 28275637632. Its totient is φ = 4452848640.

The previous prime is 11503202231. The next prime is 11503202257. The reversal of 11503202240 is 4220230511.

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

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, 569879 + ... + 589718.

Almost surely, 2^11503202240 is an apocalyptic number.

11503202240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11503202240 is an abundant number, since it is smaller than the sum of its proper divisors (16772435392).

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

11503202240 is a wasteful number, since it uses less digits than its factorization.

11503202240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159645 (or 1159635 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 11503202240 its reverse (4220230511), we get a palindrome (15723432751).

The spelling of 11503202240 in words is "eleven billion, five hundred three million, two hundred two thousand, two hundred forty".