11311440003 has 12 divisors (see below), whose sum is σ = 16357178448. Its totient is φ = 7532453040.

The previous prime is 11311439999. The next prime is 11311440079. The reversal of 11311440003 is 30004411311.

It is not a de Polignac number, because 11311440003 - 2² = 11311439999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11311440703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 700488 + ... + 716453.

It is an arithmetic number, because the mean of its divisors is an integer number (1363098204).

Almost surely, 2^11311440003 is an apocalyptic number.

11311440003 is a deficient number, since it is larger than the sum of its proper divisors (5045738445).

11311440003 is a wasteful number, since it uses less digits than its factorization.

11311440003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417834 (or 1417831 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11311440003 its reverse (30004411311), we get a palindrome (41315851314).

The spelling of 11311440003 in words is "eleven billion, three hundred eleven million, four hundred forty thousand, three".