1313015871443 has 16 divisors (see below), whose sum is σ = 1396107578400. Its totient is φ = 1231328044800.

The previous prime is 1313015871439. The next prime is 1313015871457. The reversal of 1313015871443 is 3441785103131.

It is not a de Polignac number, because 1313015871443 - 2² = 1313015871439 is a prime.

It is a super-2 number, since 2×1313015871443² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1313015871443.

It is not an unprimeable number, because it can be changed into a prime (1313015871403) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9118655 + ... + 9261527.

It is an arithmetic number, because the mean of its divisors is an integer number (87256723650).

Almost surely, 2^{1313015871443} is an apocalyptic number.

1313015871443 is a deficient number, since it is larger than the sum of its proper divisors (83091706957).

1313015871443 is a wasteful number, since it uses less digits than its factorization.

1313015871443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147782.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 1313015871443 in words is "one trillion, three hundred thirteen billion, fifteen million, eight hundred seventy-one thousand, four hundred forty-three".