1043345513543 has 4 divisors (see below), whose sum is σ = 1058040520848. Its totient is φ = 1028650506240.

The previous prime is 1043345513527. The next prime is 1043345513563. The reversal of 1043345513543 is 3453155433401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1043345513543 - 2⁴ = 1043345513527 is a prime.

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 1043345513543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043345513503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7347503546 + ... + 7347503687.

It is an arithmetic number, because the mean of its divisors is an integer number (264510130212).

Almost surely, 2^{1043345513543} is an apocalyptic number.

1043345513543 is a deficient number, since it is larger than the sum of its proper divisors (14695007305).

1043345513543 is an equidigital number, since it uses as much as digits as its factorization.

1043345513543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14695007304.

The product of its (nonzero) digits is 648000, while the sum is 41.

The spelling of 1043345513543 in words is "one trillion, forty-three billion, three hundred forty-five million, five hundred thirteen thousand, five hundred forty-three".