1243342223 has 8 divisors (see below), whose sum is σ = 1265932800. Its totient is φ = 1220802328.

The previous prime is 1243342213. The next prime is 1243342229. The reversal of 1243342223 is 3222433421.

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 1243342223 - 2⁴ = 1243342207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1243342192 and 1243342201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243342229) 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, 38708 + ... + 63126.

It is an arithmetic number, because the mean of its divisors is an integer number (158241600).

Almost surely, 2^1243342223 is an apocalyptic number.

1243342223 is a deficient number, since it is larger than the sum of its proper divisors (22590577).

1243342223 is an equidigital number, since it uses as much as digits as its factorization.

1243342223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25341.

The product of its digits is 6912, while the sum is 26.

The square root of 1243342223 is about 35261.0581661980. The cubic root of 1243342223 is about 1075.3014400373.

Adding to 1243342223 its reverse (3222433421), we get a palindrome (4465775644).

The spelling of 1243342223 in words is "one billion, two hundred forty-three million, three hundred forty-two thousand, two hundred twenty-three".