1240313003 has 2 divisors, whose sum is σ = 1240313004. Its totient is φ = 1240313002.

The previous prime is 1240312991. The next prime is 1240313021. The reversal of 1240313003 is 3003130421.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3003130421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1240313003 - 2¹⁰ = 1240311979 is a prime.

It is not a weakly prime, because it can be changed into another prime (1240313023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620156501 + 620156502.

It is an arithmetic number, because the mean of its divisors is an integer number (620156502).

Almost surely, 2^1240313003 is an apocalyptic number.

1240313003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240313003 is an equidigital number, since it uses as much as digits as its factorization.

1240313003 is an evil number, because the sum of its binary digits is even.

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

The square root of 1240313003 is about 35218.0777868412. The cubic root of 1240313003 is about 1074.4274587406.

Adding to 1240313003 its reverse (3003130421), we get a palindrome (4243443424).

The spelling of 1240313003 in words is "one billion, two hundred forty million, three hundred thirteen thousand, three".