1001002020102 has 96 divisors (see below), whose sum is σ = 2606178818880. Its totient is φ = 271611567360.

The previous prime is 1001002020079. The next prime is 1001002020133. The reversal of 1001002020102 is 2010202001001.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2022573 + ... + 2468360.

It is an arithmetic number, because the mean of its divisors is an integer number (27147696030).

Almost surely, 2^{1001002020102} is an apocalyptic number.

1001002020102 is an abundant number, since it is smaller than the sum of its proper divisors (1605176798778).

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

1001002020102 is a wasteful number, since it uses less digits than its factorization.

1001002020102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4491038 (or 4491035 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1001002020102 its reverse (2010202001001), we get a palindrome (3011204021103).

The spelling of 1001002020102 in words is "one trillion, one billion, two million, twenty thousand, one hundred two".