1240330041791 has 2 divisors, whose sum is σ = 1240330041792. Its totient is φ = 1240330041790.

The previous prime is 1240330041751. The next prime is 1240330041803. The reversal of 1240330041791 is 1971400330421.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1240330041791 is a prime.

It is a super-2 number, since 2×1240330041791² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1240330041721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620165020895 + 620165020896.

It is an arithmetic number, because the mean of its divisors is an integer number (620165020896).

Almost surely, 2^{1240330041791} is an apocalyptic number.

1240330041791 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240330041791 is an equidigital number, since it uses as much as digits as its factorization.

1240330041791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 1240330041791 in words is "one trillion, two hundred forty billion, three hundred thirty million, forty-one thousand, seven hundred ninety-one".