1311562255320 has 96 divisors (see below), whose sum is σ = 4265002684800. Its totient is φ = 349550931456.

The previous prime is 1311562255313. The next prime is 1311562255337. The reversal of 1311562255320 is 235522651131.

1311562255320 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 5 + 622 + 5 + 5 + 3 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 402357 + ... + 1668836.

It is an arithmetic number, because the mean of its divisors is an integer number (44427111300).

Almost surely, 2^{1311562255320} is an apocalyptic number.

1311562255320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311562255320 is an abundant number, since it is smaller than the sum of its proper divisors (2953440429480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311562255320 is a wasteful number, since it uses less digits than its factorization.

1311562255320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072969 (or 2072962 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 1311562255320 in words is "one trillion, three hundred eleven billion, five hundred sixty-two million, two hundred fifty-five thousand, three hundred twenty".