1230323403 has 4 divisors (see below), whose sum is σ = 1640431208. Its totient is φ = 820215600.

The previous prime is 1230323389. The next prime is 1230323441. The reversal of 1230323403 is 3043230321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3043230321 = 3 ⋅1014410107.

It is not a de Polignac number, because 1230323403 - 2¹⁶ = 1230257867 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1230323403.

It is not an unprimeable number, because it can be changed into a prime (1230323453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205053898 + ... + 205053903.

It is an arithmetic number, because the mean of its divisors is an integer number (410107802).

Almost surely, 2^1230323403 is an apocalyptic number.

1230323403 is a deficient number, since it is larger than the sum of its proper divisors (410107805).

1230323403 is an equidigital number, since it uses as much as digits as its factorization.

1230323403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410107804.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 1230323403 is about 35075.9661734356. The cubic root of 1230323403 is about 1071.5351658849.

Adding to 1230323403 its reverse (3043230321), we get a palindrome (4273553724).

The spelling of 1230323403 in words is "one billion, two hundred thirty million, three hundred twenty-three thousand, four hundred three".