10403320423 has 4 divisors (see below), whose sum is σ = 10762055640. Its totient is φ = 10044585208.

The previous prime is 10403320397. The next prime is 10403320427. The reversal of 10403320423 is 32402330401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10403320423 - 2¹⁷ = 10403189351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10403320394 and 10403320403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10403320427) 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, 179367565 + ... + 179367622.

It is an arithmetic number, because the mean of its divisors is an integer number (2690513910).

Almost surely, 2^10403320423 is an apocalyptic number.

10403320423 is a deficient number, since it is larger than the sum of its proper divisors (358735217).

10403320423 is an equidigital number, since it uses as much as digits as its factorization.

10403320423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358735216.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 10403320423 its reverse (32402330401), we get a palindrome (42805650824).

The spelling of 10403320423 in words is "ten billion, four hundred three million, three hundred twenty thousand, four hundred twenty-three".