20101000203102 has 128 divisors (see below), whose sum is σ = 51576305679360. Its totient is φ = 5079483601920.

The previous prime is 20101000203061. The next prime is 20101000203103. The reversal of 20101000203102 is 20130200010102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101000203103) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 2771103 + ... + 6919610.

It is an arithmetic number, because the mean of its divisors is an integer number (402939888120).

Almost surely, 2^{20101000203102} is an apocalyptic number.

20101000203102 is an abundant number, since it is smaller than the sum of its proper divisors (31475305476258).

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

20101000203102 is a wasteful number, since it uses less digits than its factorization.

20101000203102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9690898.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20101000203102 its reverse (20130200010102), we get a palindrome (40231200213204).

The spelling of 20101000203102 in words is "twenty trillion, one hundred one billion, two hundred three thousand, one hundred two".