1002020131986 has 32 divisors (see below), whose sum is σ = 2034175561728. Its totient is φ = 328985260560.

The previous prime is 1002020131943. The next prime is 1002020131997. The reversal of 1002020131986 is 6891310202001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3642471 + ... + 3907893.

It is an arithmetic number, because the mean of its divisors is an integer number (63567986304).

Almost surely, 2^{1002020131986} is an apocalyptic number.

1002020131986 is an abundant number, since it is smaller than the sum of its proper divisors (1032155429742).

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

1002020131986 is a wasteful number, since it uses less digits than its factorization.

1002020131986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274886.

The product of its (nonzero) digits is 5184, while the sum is 33.

Adding to 1002020131986 its reverse (6891310202001), we get a palindrome (7893330333987).

The spelling of 1002020131986 in words is "one trillion, two billion, twenty million, one hundred thirty-one thousand, nine hundred eighty-six".