1002012020056 has 32 divisors (see below), whose sum is σ = 1882900974240. Its totient is φ = 499905960448.

The previous prime is 1002012020033. The next prime is 1002012020057. The reversal of 1002012020056 is 6500202102001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002012020057) 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 7 ways as a sum of consecutive naturals, for example, 9420885 + ... + 9526651.

It is an arithmetic number, because the mean of its divisors is an integer number (58840655445).

Almost surely, 2^{1002012020056} is an apocalyptic number.

It is an amenable number.

1002012020056 is a deficient number, since it is larger than the sum of its proper divisors (880888954184).

1002012020056 is a wasteful number, since it uses less digits than its factorization.

1002012020056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108363 (or 108359 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 1002012020056 its reverse (6500202102001), we get a palindrome (7502214122057).

The spelling of 1002012020056 in words is "one trillion, two billion, twelve million, twenty thousand, fifty-six".