1002001112 has 32 divisors (see below), whose sum is σ = 2151424800. Its totient is φ = 428573184.

The previous prime is 1002001087. The next prime is 1002001123. The reversal of 1002001112 is 2111002001.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1002001112.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 10928 + ... + 46080.

It is an arithmetic number, because the mean of its divisors is an integer number (67232025).

Almost surely, 2^1002001112 is an apocalyptic number.

It is an amenable number.

1002001112 is an abundant number, since it is smaller than the sum of its proper divisors (1149423688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1002001112 is a wasteful number, since it uses less digits than its factorization.

1002001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35675 (or 35671 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1002001112 is about 31654.4011473918. The cubic root of 1002001112 is about 1000.6665928885. Note that the first 3 decimals are identical.

Adding to 1002001112 its reverse (2111002001), we get a palindrome (3113003113).

The spelling of 1002001112 in words is "one billion, two million, one thousand, one hundred twelve".