1311230654555 has 8 divisors (see below), whose sum is σ = 1606955015232. Its totient is φ = 1026665703808.

The previous prime is 1311230654549. The next prime is 1311230654621. The reversal of 1311230654555 is 5554560321131.

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

It is a cyclic number.

It is not a de Polignac number, because 1311230654555 - 2¹² = 1311230650459 is a prime.

It is a Duffinian 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, 2789852222 + ... + 2789852691.

It is an arithmetic number, because the mean of its divisors is an integer number (200869376904).

Almost surely, 2^{1311230654555} is an apocalyptic number.

1311230654555 is a deficient number, since it is larger than the sum of its proper divisors (295724360677).

1311230654555 is an equidigital number, since it uses as much as digits as its factorization.

1311230654555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5579704965.

The product of its (nonzero) digits is 270000, while the sum is 41.

Adding to 1311230654555 its reverse (5554560321131), we get a palindrome (6865790975686).

The spelling of 1311230654555 in words is "one trillion, three hundred eleven billion, two hundred thirty million, six hundred fifty-four thousand, five hundred fifty-five".