1241340311 has 4 divisors (see below), whose sum is σ = 1241427552. Its totient is φ = 1241253072.

The previous prime is 1241340293. The next prime is 1241340341. The reversal of 1241340311 is 1130431421.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1241340311 - 2¹⁴ = 1241323927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241340341) 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 in 3 ways as a sum of consecutive naturals, for example, 16766 + ... + 52571.

It is an arithmetic number, because the mean of its divisors is an integer number (310356888).

Almost surely, 2^1241340311 is an apocalyptic number.

1241340311 is a deficient number, since it is larger than the sum of its proper divisors (87241).

1241340311 is an equidigital number, since it uses as much as digits as its factorization.

1241340311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87240.

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

The square root of 1241340311 is about 35232.6597207761. The cubic root of 1241340311 is about 1074.7240138101.

Adding to 1241340311 its reverse (1130431421), we get a palindrome (2371771732).

The spelling of 1241340311 in words is "one billion, two hundred forty-one million, three hundred forty thousand, three hundred eleven".