1001020001208 has 16 divisors (see below), whose sum is σ = 2502550003080. Its totient is φ = 333673333728.

The previous prime is 1001020001171. The next prime is 1001020001209. The reversal of 1001020001208 is 8021000201001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001020001209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20854583335 + ... + 20854583382.

Almost surely, 2^{1001020001208} is an apocalyptic number.

It is an amenable number.

1001020001208 is an abundant number, since it is smaller than the sum of its proper divisors (1501530001872).

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

1001020001208 is a wasteful number, since it uses less digits than its factorization.

1001020001208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41709166726 (or 41709166722 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1001020001208 its reverse (8021000201001), we get a palindrome (9022020202209).

The spelling of 1001020001208 in words is "one trillion, one billion, twenty million, one thousand, two hundred eight".