1002111112 has 16 divisors (see below), whose sum is σ = 1880158860. Its totient is φ = 500735424.

The previous prime is 1002111109. The next prime is 1002111139. The reversal of 1002111112 is 2111112001.

It can be written as a sum of positive squares in 2 ways, for example, as 905167396 + 96943716 = 30086^2 + 9846^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26443 + ... + 51994.

Almost surely, 2^1002111112 is an apocalyptic number.

It is an amenable number.

1002111112 is a deficient number, since it is larger than the sum of its proper divisors (878047748).

1002111112 is a wasteful number, since it uses less digits than its factorization.

1002111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80040 (or 80036 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 1002111112 is about 31656.1386148090. The cubic root of 1002111112 is about 1000.7032093807.

Adding to 1002111112 its reverse (2111112001), we get a palindrome (3113223113).

The spelling of 1002111112 in words is "one billion, two million, one hundred eleven thousand, one hundred twelve".