1310803887555 has 24 divisors (see below), whose sum is σ = 2282069164752. Its totient is φ = 696015685824.

The previous prime is 1310803887553. The next prime is 1310803887557. The reversal of 1310803887555 is 5557883080131.

1310803887555 is a `hidden beast` number, since 1 + 3 + 1 + 0 + 8 + 0 + 3 + 8 + 87 + 555 = 666.

It is an interprime number because it is at equal distance from previous prime (1310803887553) and next prime (1310803887557).

It is not a de Polignac number, because 1310803887555 - 2¹ = 1310803887553 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1310803887553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64150524 + ... + 64170953.

It is an arithmetic number, because the mean of its divisors is an integer number (95086215198).

Almost surely, 2^{1310803887555} is an apocalyptic number.

1310803887555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1310803887555 is a deficient number, since it is larger than the sum of its proper divisors (971265277197).

1310803887555 is a wasteful number, since it uses less digits than its factorization.

1310803887555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128321715 (or 128321712 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 54.

The spelling of 1310803887555 in words is "one trillion, three hundred ten billion, eight hundred three million, eight hundred eighty-seven thousand, five hundred fifty-five".