1001187112 has 8 divisors (see below), whose sum is σ = 1877225850. Its totient is φ = 500593552.

The previous prime is 1001187073. The next prime is 1001187133. The reversal of 1001187112 is 2117811001.

It can be written as a sum of positive squares in only one way, i.e., 984327876 + 16859236 = 31374^2 + 4106^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 62574187 + ... + 62574202.

Almost surely, 2^1001187112 is an apocalyptic number.

It is an amenable number.

1001187112 is a deficient number, since it is larger than the sum of its proper divisors (876038738).

1001187112 is a wasteful number, since it uses less digits than its factorization.

1001187112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125148395 (or 125148391 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 22.

The square root of 1001187112 is about 31641.5409232863. The cubic root of 1001187112 is about 1000.3955475215.

Adding to 1001187112 its reverse (2117811001), we get a palindrome (3118998113).

The spelling of 1001187112 in words is "one billion, one million, one hundred eighty-seven thousand, one hundred twelve".