1311235133555 has 8 divisors (see below), whose sum is σ = 1573754470800. Its totient is φ = 1048806566496.

The previous prime is 1311235133521. The next prime is 1311235133563. The reversal of 1311235133555 is 5553315321131.

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 1311235133555 - 2¹⁸ = 1311234871411 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22660760 + ... + 22718549.

It is an arithmetic number, because the mean of its divisors is an integer number (196719308850).

Almost surely, 2^{1311235133555} is an apocalyptic number.

1311235133555 is a deficient number, since it is larger than the sum of its proper divisors (262519337245).

1311235133555 is an equidigital number, since it uses as much as digits as its factorization.

1311235133555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45385093.

The product of its digits is 101250, while the sum is 38.

The spelling of 1311235133555 in words is "one trillion, three hundred eleven billion, two hundred thirty-five million, one hundred thirty-three thousand, five hundred fifty-five".