1223542003 has 8 divisors (see below), whose sum is σ = 1305718272. Its totient is φ = 1142499456.

The previous prime is 1223541973. The next prime is 1223542039. The reversal of 1223542003 is 3002453221.

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

It is a cyclic number.

It is not a de Polignac number, because 1223542003 - 2⁹ = 1223541491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223542043) 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 7 ways as a sum of consecutive naturals, for example, 281200 + ... + 285517.

It is an arithmetic number, because the mean of its divisors is an integer number (163214784).

Almost surely, 2^1223542003 is an apocalyptic number.

1223542003 is a deficient number, since it is larger than the sum of its proper divisors (82176269).

1223542003 is a wasteful number, since it uses less digits than its factorization.

1223542003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566861.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 1223542003 is about 34979.1652702005. The cubic root of 1223542003 is about 1069.5628117579.

Adding to 1223542003 its reverse (3002453221), we get a palindrome (4225995224).

The spelling of 1223542003 in words is "one billion, two hundred twenty-three million, five hundred forty-two thousand, three".