11143103240 has 64 divisors (see below), whose sum is σ = 25290448560. Its totient is φ = 4418498560.

The previous prime is 11143103221. The next prime is 11143103249. The reversal of 11143103240 is 4230134111.

It can be written as a sum of positive squares in 8 ways, for example, as 8489411044 + 2653692196 = 92138^2 + 51514^2 .

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

It is not an unprimeable number, because it can be changed into a prime (11143103249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7523300 + ... + 7524780.

Almost surely, 2^11143103240 is an apocalyptic number.

11143103240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11143103240 is an abundant number, since it is smaller than the sum of its proper divisors (14147345320).

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

11143103240 is a wasteful number, since it uses less digits than its factorization.

11143103240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3002 (or 2998 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11143103240 its reverse (4230134111), we get a palindrome (15373237351).

The spelling of 11143103240 in words is "eleven billion, one hundred forty-three million, one hundred three thousand, two hundred forty".