1423355043443 has 4 divisors (see below), whose sum is σ = 1443402297648. Its totient is φ = 1403307789240.

The previous prime is 1423355043421. The next prime is 1423355043449. The reversal of 1423355043443 is 3443405533241.

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

It is not a de Polignac number, because 1423355043443 - 2⁶ = 1423355043379 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 1423355043443.

It is not an unprimeable number, because it can be changed into a prime (1423355043449) 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, 10023626996 + ... + 10023627137.

It is an arithmetic number, because the mean of its divisors is an integer number (360850574412).

Almost surely, 2^{1423355043443} is an apocalyptic number.

1423355043443 is a deficient number, since it is larger than the sum of its proper divisors (20047254205).

1423355043443 is an equidigital number, since it uses as much as digits as its factorization.

1423355043443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20047254204.

The product of its (nonzero) digits is 1036800, while the sum is 41.

The spelling of 1423355043443 in words is "one trillion, four hundred twenty-three billion, three hundred fifty-five million, forty-three thousand, four hundred forty-three".