11131440203 has 16 divisors (see below), whose sum is σ = 12521865216. Its totient is φ = 9818249760.

The previous prime is 11131440193. The next prime is 11131440211. The reversal of 11131440203 is 30204413111.

It is a cyclic number.

It is not a de Polignac number, because 11131440203 - 2¹⁴ = 11131423819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11131440703) 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, 277526 + ... + 315092.

It is an arithmetic number, because the mean of its divisors is an integer number (782616576).

Almost surely, 2^11131440203 is an apocalyptic number.

11131440203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11131440203 is a deficient number, since it is larger than the sum of its proper divisors (1390425013).

11131440203 is a wasteful number, since it uses less digits than its factorization.

11131440203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38594.

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

Adding to 11131440203 its reverse (30204413111), we get a palindrome (41335853314).

The spelling of 11131440203 in words is "eleven billion, one hundred thirty-one million, four hundred forty thousand, two hundred three".