1241404511 has 2 divisors, whose sum is σ = 1241404512. Its totient is φ = 1241404510.

The previous prime is 1241404471. The next prime is 1241404529. The reversal of 1241404511 is 1154041421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1241404511 - 2¹⁸ = 1241142367 is a prime.

It is a super-2 number, since 2×1241404511² = 3082170319862298242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1241404111) 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, 620702255 + 620702256.

It is an arithmetic number, because the mean of its divisors is an integer number (620702256).

Almost surely, 2^1241404511 is an apocalyptic number.

1241404511 is a deficient number, since it is larger than the sum of its proper divisors (1).

1241404511 is an equidigital number, since it uses as much as digits as its factorization.

1241404511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 1241404511 is about 35233.5707954786. The cubic root of 1241404511 is about 1074.7425411207.

Adding to 1241404511 its reverse (1154041421), we get a palindrome (2395445932).

The spelling of 1241404511 in words is "one billion, two hundred forty-one million, four hundred four thousand, five hundred eleven".