1223544402433 has 2 divisors, whose sum is σ = 1223544402434. Its totient is φ = 1223544402432.

The previous prime is 1223544402427. The next prime is 1223544402473. The reversal of 1223544402433 is 3342044453221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1087248314944 + 136296087489 = 1042712^2 + 369183^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223544402433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1223544402392 and 1223544402401.

It is not a weakly prime, because it can be changed into another prime (1223544402473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611772201216 + 611772201217.

It is an arithmetic number, because the mean of its divisors is an integer number (611772201217).

Almost surely, 2^{1223544402433} is an apocalyptic number.

It is an amenable number.

1223544402433 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223544402433 is an equidigital number, since it uses as much as digits as its factorization.

1223544402433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 37.

Adding to 1223544402433 its reverse (3342044453221), we get a palindrome (4565588855654).

The spelling of 1223544402433 in words is "one trillion, two hundred twenty-three billion, five hundred forty-four million, four hundred two thousand, four hundred thirty-three".