20134111223 has 16 divisors (see below), whose sum is σ = 20623196160. Its totient is φ = 19649389344.

The previous prime is 20134111189. The next prime is 20134111237. The reversal of 20134111223 is 32211143102.

It is a cyclic number.

It is not a de Polignac number, because 20134111223 - 2¹⁴ = 20134094839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20134111195 and 20134111204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20134111523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8991338 + ... + 8993576.

It is an arithmetic number, because the mean of its divisors is an integer number (1288949760).

Almost surely, 2^20134111223 is an apocalyptic number.

20134111223 is a deficient number, since it is larger than the sum of its proper divisors (489084937).

20134111223 is a wasteful number, since it uses less digits than its factorization.

20134111223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3118.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20134111223 its reverse (32211143102), we get a palindrome (52345254325).

The spelling of 20134111223 in words is "twenty billion, one hundred thirty-four million, one hundred eleven thousand, two hundred twenty-three".