1312451005443 has 16 divisors (see below), whose sum is σ = 1751072944896. Its totient is φ = 874398379680.

The previous prime is 1312451005441. The next prime is 1312451005447. The reversal of 1312451005443 is 3445001542131.

It is not a de Polignac number, because 1312451005443 - 2¹ = 1312451005441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1312451005441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35240530 + ... + 35277752.

It is an arithmetic number, because the mean of its divisors is an integer number (109442059056).

Almost surely, 2^{1312451005443} is an apocalyptic number.

1312451005443 is a deficient number, since it is larger than the sum of its proper divisors (438621939453).

1312451005443 is a wasteful number, since it uses less digits than its factorization.

1312451005443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44554.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 1312451005443 its reverse (3445001542131), we get a palindrome (4757452547574).

The spelling of 1312451005443 in words is "one trillion, three hundred twelve billion, four hundred fifty-one million, five thousand, four hundred forty-three".