20212110110123 has 2 divisors, whose sum is σ = 20212110110124. Its totient is φ = 20212110110122.

The previous prime is 20212110110051. The next prime is 20212110110149. The reversal of 20212110110123 is 32101101121202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20212110110123 - 2¹⁰ = 20212110109099 is a prime.

It is not a weakly prime, because it can be changed into another prime (20212110110623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106055055061 + 10106055055062.

It is an arithmetic number, because the mean of its divisors is an integer number (10106055055062).

Almost surely, 2^{20212110110123} is an apocalyptic number.

20212110110123 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212110110123 is an equidigital number, since it uses as much as digits as its factorization.

20212110110123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 20212110110123 its reverse (32101101121202), we get a palindrome (52313211231325).

The spelling of 20212110110123 in words is "twenty trillion, two hundred twelve billion, one hundred ten million, one hundred ten thousand, one hundred twenty-three".