1311004441 has 4 divisors (see below), whose sum is σ = 1311103332. Its totient is φ = 1310905552.

The previous prime is 1311004433. The next prime is 1311004459. The reversal of 1311004441 is 1444001131.

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 can be written as a sum of positive squares in 2 ways, for example, as 359898841 + 951105600 = 18971^2 + 30840^2 .

It is a cyclic number.

It is not a de Polignac number, because 1311004441 - 2³ = 1311004433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311004481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25786 + ... + 57331.

It is an arithmetic number, because the mean of its divisors is an integer number (327775833).

Almost surely, 2^1311004441 is an apocalyptic number.

It is an amenable number.

1311004441 is a deficient number, since it is larger than the sum of its proper divisors (98891).

1311004441 is an equidigital number, since it uses as much as digits as its factorization.

1311004441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98890.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1311004441 is about 36207.7953070882. The cubic root of 1311004441 is about 1094.4637647417.

Adding to 1311004441 its reverse (1444001131), we get a palindrome (2755005572).

The spelling of 1311004441 in words is "one billion, three hundred eleven million, four thousand, four hundred forty-one".