1204002403 has 2 divisors, whose sum is σ = 1204002404. Its totient is φ = 1204002402.

The previous prime is 1204002391. The next prime is 1204002409. The reversal of 1204002403 is 3042004021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1204002403 is a prime.

It is not a weakly prime, because it can be changed into another prime (1204002409) 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 as a sum of consecutive naturals, namely, 602001201 + 602001202.

It is an arithmetic number, because the mean of its divisors is an integer number (602001202).

Almost surely, 2^1204002403 is an apocalyptic number.

1204002403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204002403 is an equidigital number, since it uses as much as digits as its factorization.

1204002403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1204002403 is about 34698.7377724320. The cubic root of 1204002403 is about 1063.8386991783.

Adding to 1204002403 its reverse (3042004021), we get a palindrome (4246006424).

The spelling of 1204002403 in words is "one billion, two hundred four million, two thousand, four hundred three".