20001100102 has 4 divisors (see below), whose sum is σ = 30001650156. Its totient is φ = 10000550050.

The previous prime is 20001100073. The next prime is 20001100111. The reversal of 20001100102 is 20100110002.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000275024 + ... + 5000275027.

It is an arithmetic number, because the mean of its divisors is an integer number (7500412539).

Almost surely, 2^20001100102 is an apocalyptic number.

20001100102 is a deficient number, since it is larger than the sum of its proper divisors (10000550054).

20001100102 is a wasteful number, since it uses less digits than its factorization.

20001100102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10000550053.

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

Adding to 20001100102 its reverse (20100110002), we get a palindrome (40101210104).

The spelling of 20001100102 in words is "twenty billion, one million, one hundred thousand, one hundred two".