1002002112108 has 36 divisors (see below), whose sum is σ = 2536580002320. Its totient is φ = 333507341856.

The previous prime is 1002002112061. The next prime is 1002002112109. The reversal of 1002002112108 is 8012112002001.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1002002112109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20532048 + ... + 20580791.

It is an arithmetic number, because the mean of its divisors is an integer number (70460555620).

Almost surely, 2^{1002002112108} is an apocalyptic number.

1002002112108 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1002002112108 is an abundant number, since it is smaller than the sum of its proper divisors (1534577890212).

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

1002002112108 is a wasteful number, since it uses less digits than its factorization.

1002002112108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41113526 (or 41113521 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1002002112108 its reverse (8012112002001), we get a palindrome (9014114114109).

The spelling of 1002002112108 in words is "one trillion, two billion, two million, one hundred twelve thousand, one hundred eight".