1223223433 has 4 divisors (see below), whose sum is σ = 1227082500. Its totient is φ = 1219364368.

The previous prime is 1223223427. The next prime is 1223223437. The reversal of 1223223433 is 3343223221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 651678784 + 571544649 = 25528^2 + 23907^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223223433 - 2¹³ = 1223215241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1223223398 and 1223223407.

It is not an unprimeable number, because it can be changed into a prime (1223223437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1929058 + ... + 1929691.

It is an arithmetic number, because the mean of its divisors is an integer number (306770625).

Almost surely, 2^1223223433 is an apocalyptic number.

It is an amenable number.

1223223433 is a deficient number, since it is larger than the sum of its proper divisors (3859067).

1223223433 is an equidigital number, since it uses as much as digits as its factorization.

1223223433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3859066.

The product of its digits is 5184, while the sum is 25.

The square root of 1223223433 is about 34974.6112630291. The cubic root of 1223223433 is about 1069.4699774021.

Adding to 1223223433 its reverse (3343223221), we get a palindrome (4566446654).

The spelling of 1223223433 in words is "one billion, two hundred twenty-three million, two hundred twenty-three thousand, four hundred thirty-three".