1223321303123 has 4 divisors (see below), whose sum is σ = 1238060114088. Its totient is φ = 1208582492160.

The previous prime is 1223321303107. The next prime is 1223321303159. The reversal of 1223321303123 is 3213031233221.

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

It is a cyclic number.

It is not a de Polignac number, because 1223321303123 - 2⁴ = 1223321303107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1223321303092 and 1223321303101.

It is not an unprimeable number, because it can be changed into a prime (1223321903123) 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, 7369405358 + ... + 7369405523.

It is an arithmetic number, because the mean of its divisors is an integer number (309515028522).

Almost surely, 2^{1223321303123} is an apocalyptic number.

1223321303123 is a deficient number, since it is larger than the sum of its proper divisors (14738810965).

1223321303123 is an equidigital number, since it uses as much as digits as its factorization.

1223321303123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14738810964.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 1223321303123 its reverse (3213031233221), we get a palindrome (4436352536344).

The spelling of 1223321303123 in words is "one trillion, two hundred twenty-three billion, three hundred twenty-one million, three hundred three thousand, one hundred twenty-three".