20123203110233 has 4 divisors (see below), whose sum is σ = 20130008389860. Its totient is φ = 20116397830608.

The previous prime is 20123203110229. The next prime is 20123203110259. The reversal of 20123203110233 is 33201130232102.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8538621656464 + 11584581453769 = 2922092^2 + 3403613^2 .

It is a cyclic number.

It is not a de Polignac number, because 20123203110233 - 2² = 20123203110229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20123203110199 and 20123203110208.

It is not an unprimeable number, because it can be changed into a prime (20123203110223) 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, 3402635378 + ... + 3402641291.

It is an arithmetic number, because the mean of its divisors is an integer number (5032502097465).

Almost surely, 2^{20123203110233} is an apocalyptic number.

It is an amenable number.

20123203110233 is a deficient number, since it is larger than the sum of its proper divisors (6805279627).

20123203110233 is an equidigital number, since it uses as much as digits as its factorization.

20123203110233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6805279626.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 20123203110233 its reverse (33201130232102), we get a palindrome (53324333342335).

The spelling of 20123203110233 in words is "twenty trillion, one hundred twenty-three billion, two hundred three million, one hundred ten thousand, two hundred thirty-three".