402441320423 has 2 divisors, whose sum is σ = 402441320424. Its totient is φ = 402441320422.

The previous prime is 402441320417. The next prime is 402441320441. The reversal of 402441320423 is 324023144204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402441320423 - 2²⁶ = 402374211559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402441320443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201220660211 + 201220660212.

It is an arithmetic number, because the mean of its divisors is an integer number (201220660212).

Almost surely, 2^402441320423 is an apocalyptic number.

402441320423 is a deficient number, since it is larger than the sum of its proper divisors (1).

402441320423 is an equidigital number, since it uses as much as digits as its factorization.

402441320423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 402441320423 its reverse (324023144204), we get a palindrome (726464464627).

The spelling of 402441320423 in words is "four hundred two billion, four hundred forty-one million, three hundred twenty thousand, four hundred twenty-three".