20011020110102 has 48 divisors (see below), whose sum is σ = 37330035630048. Its totient is φ = 7874801863680.

The previous prime is 20011020110101. The next prime is 20011020110141. The reversal of 20011020110102 is 20101102011002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011020110101) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 60149693 + ... + 60481464.

It is an arithmetic number, because the mean of its divisors is an integer number (777709075626).

Almost surely, 2^{20011020110102} is an apocalyptic number.

20011020110102 is a deficient number, since it is larger than the sum of its proper divisors (17319015519946).

20011020110102 is a wasteful number, since it uses less digits than its factorization.

20011020110102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120631241 (or 120631224 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20011020110102 its reverse (20101102011002), we get a palindrome (40112122121104).

The spelling of 20011020110102 in words is "twenty trillion, eleven billion, twenty million, one hundred ten thousand, one hundred two".