20102102111223 has 24 divisors (see below), whose sum is σ = 31972077461376. Its totient is φ = 12069231507600.

The previous prime is 20102102111197. The next prime is 20102102111249. The reversal of 20102102111223 is 32211120120102.

20102102111223 is a `hidden beast` number, since 20 + 1 + 0 + 210 + 211 + 1 + 223 = 666.

It is an interprime number because it is at equal distance from previous prime (20102102111197) and next prime (20102102111249).

It is not a de Polignac number, because 20102102111223 - 2⁶ = 20102102111159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20102102111196 and 20102102111205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102102111123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 948828363 + ... + 948849548.

It is an arithmetic number, because the mean of its divisors is an integer number (1332169894224).

Almost surely, 2^{20102102111223} is an apocalyptic number.

20102102111223 is a deficient number, since it is larger than the sum of its proper divisors (11869975350153).

20102102111223 is a wasteful number, since it uses less digits than its factorization.

20102102111223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897678035 (or 1897678032 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 20102102111223 its reverse (32211120120102), we get a palindrome (52313222231325).

The spelling of 20102102111223 in words is "twenty trillion, one hundred two billion, one hundred two million, one hundred eleven thousand, two hundred twenty-three".