12403533443 has 4 divisors (see below), whose sum is σ = 14175466800. Its totient is φ = 10631600088.

The previous prime is 12403533437. The next prime is 12403533451. The reversal of 12403533443 is 34433530421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34433530421 = 12251 ⋅2810671.

It is a cyclic number.

It is not a de Polignac number, because 12403533443 - 2²⁴ = 12386756227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12403533413) 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, 885966668 + ... + 885966681.

It is an arithmetic number, because the mean of its divisors is an integer number (3543866700).

Almost surely, 2^12403533443 is an apocalyptic number.

12403533443 is a deficient number, since it is larger than the sum of its proper divisors (1771933357).

12403533443 is an equidigital number, since it uses as much as digits as its factorization.

12403533443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771933356.

The product of its (nonzero) digits is 51840, while the sum is 32.

The spelling of 12403533443 in words is "twelve billion, four hundred three million, five hundred thirty-three thousand, four hundred forty-three".