1223321231303 has 4 divisors (see below), whose sum is σ = 1223336878320. Its totient is φ = 1223305584288.

The previous prime is 1223321231273. The next prime is 1223321231393. The reversal of 1223321231303 is 3031321233221.

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 1223321231303 - 2¹⁸ = 1223320969159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223321231393) 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, 7705643 + ... + 7862796.

It is an arithmetic number, because the mean of its divisors is an integer number (305834219580).

Almost surely, 2^{1223321231303} is an apocalyptic number.

1223321231303 is a deficient number, since it is larger than the sum of its proper divisors (15647017).

1223321231303 is an equidigital number, since it uses as much as digits as its factorization.

1223321231303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15647016.

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

Adding to 1223321231303 its reverse (3031321233221), we get a palindrome (4254642464524).

The spelling of 1223321231303 in words is "one trillion, two hundred twenty-three billion, three hundred twenty-one million, two hundred thirty-one thousand, three hundred three".