20011102203111 has 8 divisors (see below), whose sum is σ = 26681971056384. Its totient is φ = 13340484075960.

The previous prime is 20011102203097. The next prime is 20011102203121. The reversal of 20011102203111 is 11130220111002.

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

It is not a de Polignac number, because 20011102203111 - 2²² = 20011098008807 is a prime.

It is a super-2 number, since 2×20011102203111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011102203121) 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 7 ways as a sum of consecutive naturals, for example, 62495221 + ... + 62814606.

It is an arithmetic number, because the mean of its divisors is an integer number (3335246382048).

Almost surely, 2^{20011102203111} is an apocalyptic number.

20011102203111 is a deficient number, since it is larger than the sum of its proper divisors (6670868853273).

20011102203111 is a wasteful number, since it uses less digits than its factorization.

20011102203111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125363061.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 20011102203111 its reverse (11130220111002), we get a palindrome (31141322314113).

The spelling of 20011102203111 in words is "twenty trillion, eleven billion, one hundred two million, two hundred three thousand, one hundred eleven".