1311440413204 has 24 divisors (see below), whose sum is σ = 2366439007968. Its totient is φ = 635456196000.

The previous prime is 1311440413193. The next prime is 1311440413243. The reversal of 1311440413204 is 4023140441131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17614414 + ... + 17688709.

It is an arithmetic number, because the mean of its divisors is an integer number (98601625332).

Almost surely, 2^{1311440413204} is an apocalyptic number.

It is an amenable number.

1311440413204 is a deficient number, since it is larger than the sum of its proper divisors (1054998594764).

1311440413204 is a wasteful number, since it uses less digits than its factorization.

1311440413204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35303415 (or 35303413 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 1311440413204 its reverse (4023140441131), we get a palindrome (5334580854335).

The spelling of 1311440413204 in words is "one trillion, three hundred eleven billion, four hundred forty million, four hundred thirteen thousand, two hundred four".