1223434413533 has 4 divisors (see below), whose sum is σ = 1262900039808. Its totient is φ = 1183968787260.

The previous prime is 1223434413529. The next prime is 1223434413569. The reversal of 1223434413533 is 3353144343221.

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.

It is a cyclic number.

It is not a de Polignac number, because 1223434413533 - 2² = 1223434413529 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223434413583) 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, 19732813091 + ... + 19732813152.

It is an arithmetic number, because the mean of its divisors is an integer number (315725009952).

Almost surely, 2^{1223434413533} is an apocalyptic number.

It is an amenable number.

1223434413533 is a deficient number, since it is larger than the sum of its proper divisors (39465626275).

1223434413533 is an equidigital number, since it uses as much as digits as its factorization.

1223434413533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39465626274.

The product of its digits is 311040, while the sum is 38.

Adding to 1223434413533 its reverse (3353144343221), we get a palindrome (4576578756754).

The spelling of 1223434413533 in words is "one trillion, two hundred twenty-three billion, four hundred thirty-four million, four hundred thirteen thousand, five hundred thirty-three".