1313041403 has 2 divisors, whose sum is σ = 1313041404. Its totient is φ = 1313041402.

The previous prime is 1313041369. The next prime is 1313041453. The reversal of 1313041403 is 3041403131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1313041403 - 2¹² = 1313037307 is a prime.

It is not a weakly prime, because it can be changed into another prime (1313041453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656520701 + 656520702.

It is an arithmetic number, because the mean of its divisors is an integer number (656520702).

Almost surely, 2^1313041403 is an apocalyptic number.

1313041403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313041403 is an equidigital number, since it uses as much as digits as its factorization.

1313041403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1313041403 is about 36235.9131663602. The cubic root of 1313041403 is about 1095.0303093436.

Adding to 1313041403 its reverse (3041403131), we get a palindrome (4354444534).

The spelling of 1313041403 in words is "one billion, three hundred thirteen million, forty-one thousand, four hundred three".