1203400323 has 6 divisors (see below), whose sum is σ = 1738244924. Its totient is φ = 802266876.

The previous prime is 1203400271. The next prime is 1203400337. The reversal of 1203400323 is 3230043021.

1203400323 is a `hidden beast` number, since 1 + 2 + 0 + 340 + 0 + 323 = 666.

It is not a de Polignac number, because 1203400323 - 2¹⁰ = 1203399299 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1203400296 and 1203400305.

It is not an unprimeable number, because it can be changed into a prime (1203400223) 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 5 ways as a sum of consecutive naturals, for example, 66855565 + ... + 66855582.

Almost surely, 2^1203400323 is an apocalyptic number.

1203400323 is a deficient number, since it is larger than the sum of its proper divisors (534844601).

1203400323 is a wasteful number, since it uses less digits than its factorization.

1203400323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133711153 (or 133711150 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 1203400323 is about 34690.0608676318. The cubic root of 1203400323 is about 1063.6613399530.

Adding to 1203400323 its reverse (3230043021), we get a palindrome (4433443344).

The spelling of 1203400323 in words is "one billion, two hundred three million, four hundred thousand, three hundred twenty-three".