20210110120111 has 2 divisors, whose sum is σ = 20210110120112. Its totient is φ = 20210110120110.

The previous prime is 20210110120097. The next prime is 20210110120133. The reversal of 20210110120111 is 11102101101202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20210110120111 - 2⁹ = 20210110119599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20210110120091 and 20210110120100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20210110120171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105055060055 + 10105055060056.

It is an arithmetic number, because the mean of its divisors is an integer number (10105055060056).

Almost surely, 2^{20210110120111} is an apocalyptic number.

20210110120111 is a deficient number, since it is larger than the sum of its proper divisors (1).

20210110120111 is an equidigital number, since it uses as much as digits as its factorization.

20210110120111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20210110120111 its reverse (11102101101202), we get a palindrome (31312211221313).

The spelling of 20210110120111 in words is "twenty trillion, two hundred ten billion, one hundred ten million, one hundred twenty thousand, one hundred eleven".