1223203300123 has 4 divisors (see below), whose sum is σ = 1397946628720. Its totient is φ = 1048459971528.

The previous prime is 1223203300103. The next prime is 1223203300127. The reversal of 1223203300123 is 3210033023221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223203300123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1223203300094 and 1223203300103.

It is not an unprimeable number, because it can be changed into a prime (1223203300127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87371664288 + ... + 87371664301.

It is an arithmetic number, because the mean of its divisors is an integer number (349486657180).

Almost surely, 2^{1223203300123} is an apocalyptic number.

1223203300123 is a deficient number, since it is larger than the sum of its proper divisors (174743328597).

1223203300123 is an equidigital number, since it uses as much as digits as its factorization.

1223203300123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174743328596.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 1223203300123 its reverse (3210033023221), we get a palindrome (4433236323344).

The spelling of 1223203300123 in words is "one trillion, two hundred twenty-three billion, two hundred three million, three hundred thousand, one hundred twenty-three".