1240103243 has 2 divisors, whose sum is σ = 1240103244. Its totient is φ = 1240103242.

The previous prime is 1240103231. The next prime is 1240103251. The reversal of 1240103243 is 3423010421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1240103243 - 2¹⁰ = 1240102219 is a prime.

It is not a weakly prime, because it can be changed into another prime (1240103203) 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, 620051621 + 620051622.

It is an arithmetic number, because the mean of its divisors is an integer number (620051622).

Almost surely, 2^1240103243 is an apocalyptic number.

1240103243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240103243 is an equidigital number, since it uses as much as digits as its factorization.

1240103243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1240103243 is about 35215.0996448966. The cubic root of 1240103243 is about 1074.3668867696.

Adding to 1240103243 its reverse (3423010421), we get a palindrome (4663113664).

The spelling of 1240103243 in words is "one billion, two hundred forty million, one hundred three thousand, two hundred forty-three".