1223323220203 has 8 divisors (see below), whose sum is σ = 1398428833280. Its totient is φ = 1048303895400.

The previous prime is 1223323220143. The next prime is 1223323220213. The reversal of 1223323220203 is 3020223233221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223323220203 is a prime.

It is a super-2 number, since 2×1223323220203² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223323220213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21541683 + ... + 21598396.

It is an arithmetic number, because the mean of its divisors is an integer number (174803604160).

Almost surely, 2^{1223323220203} is an apocalyptic number.

1223323220203 is a deficient number, since it is larger than the sum of its proper divisors (175105613077).

1223323220203 is an equidigital number, since it uses as much as digits as its factorization.

1223323220203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43144137.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 1223323220203 its reverse (3020223233221), we get a palindrome (4243546453424).

The spelling of 1223323220203 in words is "one trillion, two hundred twenty-three billion, three hundred twenty-three million, two hundred twenty thousand, two hundred three".