11431403127 has 16 divisors (see below), whose sum is σ = 16939802880. Its totient is φ = 7618959576.

The previous prime is 11431403107. The next prime is 11431403129. The reversal of 11431403127 is 72130413411.

It is not a de Polignac number, because 11431403127 - 2¹⁹ = 11430878839 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 11431403127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11431403129) 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, 55198 + ... + 160964.

It is an arithmetic number, because the mean of its divisors is an integer number (1058737680).

Almost surely, 2^11431403127 is an apocalyptic number.

11431403127 is a deficient number, since it is larger than the sum of its proper divisors (5508399753).

11431403127 is a wasteful number, since it uses less digits than its factorization.

11431403127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109779 (or 109773 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

Adding to 11431403127 its reverse (72130413411), we get a palindrome (83561816538).

The spelling of 11431403127 in words is "eleven billion, four hundred thirty-one million, four hundred three thousand, one hundred twenty-seven".