1118432271 has 16 divisors (see below), whose sum is σ = 1629371520. Its totient is φ = 676770720.

The previous prime is 1118432269. The next prime is 1118432311. The reversal of 1118432271 is 1722348111.

It is not a de Polignac number, because 1118432271 - 2¹ = 1118432269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118432671) 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, 5136 + ... + 47573.

It is an arithmetic number, because the mean of its divisors is an integer number (101835720).

Almost surely, 2^1118432271 is an apocalyptic number.

1118432271 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1118432271 is a deficient number, since it is larger than the sum of its proper divisors (510939249).

1118432271 is a wasteful number, since it uses less digits than its factorization.

1118432271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53366.

The product of its digits is 2688, while the sum is 30.

The square root of 1118432271 is about 33442.9704272811. The cubic root of 1118432271 is about 1038.0140450875.

The spelling of 1118432271 in words is "one billion, one hundred eighteen million, four hundred thirty-two thousand, two hundred seventy-one".