1223013321003 has 32 divisors (see below), whose sum is σ = 1788602591232. Its totient is φ = 740002291200.

The previous prime is 1223013320989. The next prime is 1223013321007. The reversal of 1223013321003 is 3001233103221.

It is not a de Polignac number, because 1223013321003 - 2²² = 1223009126699 is a prime.

It is a super-3 number, since 3×1223013321003³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1223013321007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 919308 + ... + 1814153.

It is an arithmetic number, because the mean of its divisors is an integer number (55893830976).

Almost surely, 2^{1223013321003} is an apocalyptic number.

1223013321003 is a deficient number, since it is larger than the sum of its proper divisors (565589270229).

1223013321003 is a wasteful number, since it uses less digits than its factorization.

1223013321003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2733795.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1223013321003 its reverse (3001233103221), we get a palindrome (4224246424224).

The spelling of 1223013321003 in words is "one trillion, two hundred twenty-three billion, thirteen million, three hundred twenty-one thousand, three".