11431443404 has 48 divisors (see below), whose sum is σ = 21348539520. Its totient is φ = 5340556800.

The previous prime is 11431443391. The next prime is 11431443449. The reversal of 11431443404 is 40434413411.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2260679 + ... + 2265729.

It is an arithmetic number, because the mean of its divisors is an integer number (444761240).

Almost surely, 2^11431443404 is an apocalyptic number.

It is an amenable number.

11431443404 is a deficient number, since it is larger than the sum of its proper divisors (9917096116).

11431443404 is a wasteful number, since it uses less digits than its factorization.

11431443404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5478 (or 5476 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 11431443404 its reverse (40434413411), we get a palindrome (51865856815).

The spelling of 11431443404 in words is "eleven billion, four hundred thirty-one million, four hundred forty-three thousand, four hundred four".