1119811971 has 16 divisors (see below), whose sum is σ = 1562146560. Its totient is φ = 712182240.

The previous prime is 1119811963. The next prime is 1119812009. The reversal of 1119811971 is 1791189111.

It is not a de Polignac number, because 1119811971 - 2³ = 1119811963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1119811921) 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 15 ways as a sum of consecutive naturals, for example, 4741 + ... + 47561.

It is an arithmetic number, because the mean of its divisors is an integer number (97634160).

Almost surely, 2^1119811971 is an apocalyptic number.

1119811971 is a deficient number, since it is larger than the sum of its proper divisors (442334589).

1119811971 is a wasteful number, since it uses less digits than its factorization.

1119811971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43226.

The product of its digits is 4536, while the sum is 39.

The square root of 1119811971 is about 33463.5917229457. The cubic root of 1119811971 is about 1038.4407016729.

The spelling of 1119811971 in words is "one billion, one hundred nineteen million, eight hundred eleven thousand, nine hundred seventy-one".