1002001012 has 48 divisors (see below), whose sum is σ = 1902942720. Its totient is φ = 459901952.

The previous prime is 1002000997. The next prime is 1002001057. The reversal of 1002001012 is 2101002001.

It is a junction number, because it is equal to n+sod(n) for n = 1002000986 and 1002001004.

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 15 ways as a sum of consecutive naturals, for example, 548733 + ... + 550555.

It is an arithmetic number, because the mean of its divisors is an integer number (39644640).

Almost surely, 2^1002001012 is an apocalyptic number.

It is an amenable number.

1002001012 is a deficient number, since it is larger than the sum of its proper divisors (900941708).

1002001012 is a wasteful number, since it uses less digits than its factorization.

1002001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040 (or 2038 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1002001012 is about 31654.3995678326. The cubic root of 1002001012 is about 1000.6665595996. Note that the first 3 decimals are identical.

Adding to 1002001012 its reverse (2101002001), we get a palindrome (3103003013).

The spelling of 1002001012 in words is "one billion, two million, one thousand, twelve".