1001000020102 has 8 divisors (see below), whose sum is σ = 1501504536456. Its totient is φ = 500498507952.

The previous prime is 1001000020087. The next prime is 1001000020103. The reversal of 1001000020102 is 2010200001001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001000020103) 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, 496218 + ... + 1499410.

It is an arithmetic number, because the mean of its divisors is an integer number (187688067057).

Almost surely, 2^{1001000020102} is an apocalyptic number.

1001000020102 is a deficient number, since it is larger than the sum of its proper divisors (500504516354).

1001000020102 is a wasteful number, since it uses less digits than its factorization.

1001000020102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502102.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 1001000020102 its reverse (2010200001001), we get a palindrome (3011200021103).

The spelling of 1001000020102 in words is "one trillion, one billion, twenty thousand, one hundred two".