20210001101111 has 8 divisors (see below), whose sum is σ = 21398866798320. Its totient is φ = 19021140082048.

The previous prime is 20210001100921. The next prime is 20210001101123. The reversal of 20210001101111 is 11110110001202.

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 20210001101111 - 2¹⁴ = 20210001084727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20210001101092 and 20210001101101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210001121111) 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, 11893820 + ... + 13486398.

It is an arithmetic number, because the mean of its divisors is an integer number (2674858349790).

Almost surely, 2^{20210001101111} is an apocalyptic number.

20210001101111 is a deficient number, since it is larger than the sum of its proper divisors (1188865697209).

20210001101111 is a wasteful number, since it uses less digits than its factorization.

20210001101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339073.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 20210001101111 its reverse (11110110001202), we get a palindrome (31320111102313).

The spelling of 20210001101111 in words is "twenty trillion, two hundred ten billion, one million, one hundred one thousand, one hundred eleven".