1240411331 has 2 divisors, whose sum is σ = 1240411332. Its totient is φ = 1240411330.

The previous prime is 1240411301. The next prime is 1240411351. The reversal of 1240411331 is 1331140421.

It is an a-pointer prime, because the next prime (1240411351) can be obtained adding 1240411331 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1240411331 - 2¹⁸ = 1240149187 is a prime.

It is a super-2 number, since 2×1240411331² = 3077240540146383122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1240411301) 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, 620205665 + 620205666.

It is an arithmetic number, because the mean of its divisors is an integer number (620205666).

Almost surely, 2^1240411331 is an apocalyptic number.

1240411331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240411331 is an equidigital number, since it uses as much as digits as its factorization.

1240411331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1240411331 is about 35219.4737467782. The cubic root of 1240411331 is about 1074.4558503674.

Adding to 1240411331 its reverse (1331140421), we get a palindrome (2571551752).

The spelling of 1240411331 in words is "one billion, two hundred forty million, four hundred eleven thousand, three hundred thirty-one".