1311404241 has 8 divisors (see below), whose sum is σ = 1998330304. Its totient is φ = 749373840.

The previous prime is 1311404221. The next prime is 1311404249. The reversal of 1311404241 is 1424041131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1311404241 - 2⁶ = 1311404177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 62447821 = 1311404241 / (1 + 3 + 1 + 1 + 4 + 0 + 4 + 2 + 4 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1311404249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31223890 + ... + 31223931.

It is an arithmetic number, because the mean of its divisors is an integer number (249791288).

Almost surely, 2^1311404241 is an apocalyptic number.

It is an amenable number.

1311404241 is a deficient number, since it is larger than the sum of its proper divisors (686926063).

1311404241 is an equidigital number, since it uses as much as digits as its factorization.

1311404241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62447831.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1311404241 is about 36213.3157968171. The cubic root of 1311404241 is about 1094.5750082349.

Adding to 1311404241 its reverse (1424041131), we get a palindrome (2735445372).

The spelling of 1311404241 in words is "one billion, three hundred eleven million, four hundred four thousand, two hundred forty-one".