20123330133223 has 2 divisors, whose sum is σ = 20123330133224. Its totient is φ = 20123330133222.

The previous prime is 20123330133199. The next prime is 20123330133233. The reversal of 20123330133223 is 32233103332102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20123330133223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20123330133191 and 20123330133200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20123330133233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061665066611 + 10061665066612.

It is an arithmetic number, because the mean of its divisors is an integer number (10061665066612).

Almost surely, 2^{20123330133223} is an apocalyptic number.

20123330133223 is a deficient number, since it is larger than the sum of its proper divisors (1).

20123330133223 is an equidigital number, since it uses as much as digits as its factorization.

20123330133223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 20123330133223 its reverse (32233103332102), we get a palindrome (52356433465325).

The spelling of 20123330133223 in words is "twenty trillion, one hundred twenty-three billion, three hundred thirty million, one hundred thirty-three thousand, two hundred twenty-three".