1405061320423 has 16 divisors (see below), whose sum is σ = 1473216256512. Its totient is φ = 1338537816000.

The previous prime is 1405061320393. The next prime is 1405061320459. The reversal of 1405061320423 is 3240231605041.

It is a cyclic number.

It is not a de Polignac number, because 1405061320423 - 2⁹ = 1405061319911 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 (1405061320483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6291708 + ... + 6511198.

It is an arithmetic number, because the mean of its divisors is an integer number (92076016032).

Almost surely, 2^{1405061320423} is an apocalyptic number.

1405061320423 is a deficient number, since it is larger than the sum of its proper divisors (68154936089).

1405061320423 is a wasteful number, since it uses less digits than its factorization.

1405061320423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223206.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 1405061320423 its reverse (3240231605041), we get a palindrome (4645292925464).

The spelling of 1405061320423 in words is "one trillion, four hundred five billion, sixty-one million, three hundred twenty thousand, four hundred twenty-three".