1312351043524 has 12 divisors (see below), whose sum is σ = 2296637670544. Its totient is φ = 656168851944.

The previous prime is 1312351043503. The next prime is 1312351043533. The reversal of 1312351043524 is 4253401532131.

It is a super-2 number, since 2×1312351043524² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1312351043524.

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 3 ways as a sum of consecutive naturals, for example, 1210854 + ... + 2022589.

Almost surely, 2^{1312351043524} is an apocalyptic number.

It is an amenable number.

1312351043524 is a deficient number, since it is larger than the sum of its proper divisors (984286627020).

1312351043524 is a wasteful number, since it uses less digits than its factorization.

1312351043524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334914 (or 3334912 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 1312351043524 its reverse (4253401532131), we get a palindrome (5565752575655).

The spelling of 1312351043524 in words is "one trillion, three hundred twelve billion, three hundred fifty-one million, forty-three thousand, five hundred twenty-four".