20000010102100 has 36 divisors (see below), whose sum is σ = 49600025054944. Its totient is φ = 6857146320480.

The previous prime is 20000010102097. The next prime is 20000010102133. The reversal of 20000010102100 is 120101000002.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14285720802 + ... + 14285722201.

Almost surely, 2^{20000010102100} is an apocalyptic number.

20000010102100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000010102100 is an abundant number, since it is smaller than the sum of its proper divisors (29600014952844).

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

20000010102100 is a wasteful number, since it uses less digits than its factorization.

20000010102100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28571443024 (or 28571443017 counting only the distinct ones).

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

Adding to 20000010102100 its reverse (120101000002), we get a palindrome (20120111102102).

The spelling of 20000010102100 in words is "twenty trillion, ten million, one hundred two thousand, one hundred".