1240313603 has 2 divisors, whose sum is σ = 1240313604. Its totient is φ = 1240313602.

The previous prime is 1240313563. The next prime is 1240313609. The reversal of 1240313603 is 3063130421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1240313603 - 2¹² = 1240309507 is a prime.

It is not a weakly prime, because it can be changed into another prime (1240313609) 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, 620156801 + 620156802.

It is an arithmetic number, because the mean of its divisors is an integer number (620156802).

Almost surely, 2^1240313603 is an apocalyptic number.

1240313603 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240313603 is an equidigital number, since it uses as much as digits as its factorization.

1240313603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 1240313603 is about 35218.0863051927. The cubic root of 1240313603 is about 1074.4276319916.

The spelling of 1240313603 in words is "one billion, two hundred forty million, three hundred thirteen thousand, six hundred three".