1119431871 has 12 divisors (see below), whose sum is σ = 1672714680. Its totient is φ = 720553680.

The previous prime is 1119431867. The next prime is 1119431881. The reversal of 1119431871 is 1781349111.

It is not a de Polignac number, because 1119431871 - 2² = 1119431867 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1119431821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2144245 + ... + 2144766.

It is an arithmetic number, because the mean of its divisors is an integer number (139392890).

Almost surely, 2^1119431871 is an apocalyptic number.

1119431871 is a deficient number, since it is larger than the sum of its proper divisors (553282809).

1119431871 is a wasteful number, since it uses less digits than its factorization.

1119431871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4289046 (or 4289043 counting only the distinct ones).

The product of its digits is 6048, while the sum is 36.

The square root of 1119431871 is about 33457.9119342496. The cubic root of 1119431871 is about 1038.3231950472.

The spelling of 1119431871 in words is "one billion, one hundred nineteen million, four hundred thirty-one thousand, eight hundred seventy-one".