1223506033 has 4 divisors (see below), whose sum is σ = 1227440448. Its totient is φ = 1219571620.

The previous prime is 1223505989. The next prime is 1223506057. The reversal of 1223506033 is 3306053221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3306053221 = 307 ⋅10768903.

It is a cyclic number.

It is not a de Polignac number, because 1223506033 - 2¹³ = 1223497841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1223505989 and 1223506007.

It is not an unprimeable number, because it can be changed into a prime (1223506093) 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, 1966741 + ... + 1967362.

It is an arithmetic number, because the mean of its divisors is an integer number (306860112).

Almost surely, 2^1223506033 is an apocalyptic number.

It is an amenable number.

1223506033 is a deficient number, since it is larger than the sum of its proper divisors (3934415).

1223506033 is an equidigital number, since it uses as much as digits as its factorization.

1223506033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3934414.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 1223506033 is about 34978.6511032087. The cubic root of 1223506033 is about 1069.5523305617.

Adding to 1223506033 its reverse (3306053221), we get a palindrome (4529559254).

The spelling of 1223506033 in words is "one billion, two hundred twenty-three million, five hundred six thousand, thirty-three".