1311230655316 has 48 divisors (see below), whose sum is σ = 2399159782656. Its totient is φ = 625870358784.

The previous prime is 1311230655311. The next prime is 1311230655347. The reversal of 1311230655316 is 6135560321131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311230655311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133562440 + ... + 133572256.

It is an arithmetic number, because the mean of its divisors is an integer number (49982495472).

Almost surely, 2^{1311230655316} is an apocalyptic number.

It is an amenable number.

1311230655316 is a deficient number, since it is larger than the sum of its proper divisors (1087929127340).

1311230655316 is a wasteful number, since it uses less digits than its factorization.

1311230655316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12568 (or 12566 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 37.

Adding to 1311230655316 its reverse (6135560321131), we get a palindrome (7446790976447).

The spelling of 1311230655316 in words is "one trillion, three hundred eleven billion, two hundred thirty million, six hundred fifty-five thousand, three hundred sixteen".