1204305323 has 16 divisors (see below), whose sum is σ = 1361398080. Its totient is φ = 1063288512.

The previous prime is 1204305283. The next prime is 1204305331. The reversal of 1204305323 is 3235034021.

It is not a de Polignac number, because 1204305323 - 2¹⁶ = 1204239787 is a prime.

It is a super-2 number, since 2×1204305323² = 2900702622012268658, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1204308323) 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 15 ways as a sum of consecutive naturals, for example, 38615 + ... + 62447.

It is an arithmetic number, because the mean of its divisors is an integer number (85087380).

Almost surely, 2^1204305323 is an apocalyptic number.

1204305323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1204305323 is a deficient number, since it is larger than the sum of its proper divisors (157092757).

1204305323 is an equidigital number, since it uses as much as digits as its factorization.

1204305323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23895 (or 23869 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 1204305323 is about 34703.1024981917. The cubic root of 1204305323 is about 1063.9279102396.

Adding to 1204305323 its reverse (3235034021), we get a palindrome (4439339344).

The spelling of 1204305323 in words is "one billion, two hundred four million, three hundred five thousand, three hundred twenty-three".