1231004303 has 2 divisors, whose sum is σ = 1231004304. Its totient is φ = 1231004302.

The previous prime is 1231004293. The next prime is 1231004309. The reversal of 1231004303 is 3034001321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1231004303 - 2⁶ = 1231004239 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231004309) 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, 615502151 + 615502152.

It is an arithmetic number, because the mean of its divisors is an integer number (615502152).

Almost surely, 2^1231004303 is an apocalyptic number.

1231004303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231004303 is an equidigital number, since it uses as much as digits as its factorization.

1231004303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1231004303 is about 35085.6709070811. The cubic root of 1231004303 is about 1071.7328032806.

Adding to 1231004303 its reverse (3034001321), we get a palindrome (4265005624).

The spelling of 1231004303 in words is "one billion, two hundred thirty-one million, four thousand, three hundred three".