20111110010101 has 8 divisors (see below), whose sum is σ = 22002256332000. Its totient is φ = 18230440953840.

The previous prime is 20111110010087. The next prime is 20111110010137. The reversal of 20111110010101 is 10101001111102.

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

It is a cyclic number.

It is not a de Polignac number, because 20111110010101 - 2⁹ = 20111110009589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111110010801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2619312391 + ... + 2619320068.

It is an arithmetic number, because the mean of its divisors is an integer number (2750282041500).

Almost surely, 2^{20111110010101} is an apocalyptic number.

It is an amenable number.

20111110010101 is a deficient number, since it is larger than the sum of its proper divisors (1891146321899).

20111110010101 is a wasteful number, since it uses less digits than its factorization.

20111110010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5238632819.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 20111110010101 its reverse (10101001111102), we get a palindrome (30212111121203).

The spelling of 20111110010101 in words is "twenty trillion, one hundred eleven billion, one hundred ten million, ten thousand, one hundred one".