211020110211023 has 4 divisors (see below), whose sum is σ = 211052322110448. Its totient is φ = 210987898311600.

The previous prime is 211020110210953. The next prime is 211020110211037. The reversal of 211020110211023 is 320112011020112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211020110211023 - 2¹⁴ = 211020110194639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211020110210992 and 211020110211010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211020110211923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16105939886 + ... + 16105952987.

It is an arithmetic number, because the mean of its divisors is an integer number (52763080527612).

Almost surely, 2^{211020110211023} is an apocalyptic number.

211020110211023 is a deficient number, since it is larger than the sum of its proper divisors (32211899425).

211020110211023 is an equidigital number, since it uses as much as digits as its factorization.

211020110211023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32211899424.

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

Adding to 211020110211023 its reverse (320112011020112), we get a palindrome (531132121231135).

The spelling of 211020110211023 in words is "two hundred eleven trillion, twenty billion, one hundred ten million, two hundred eleven thousand, twenty-three".