2043430003423 has 4 divisors (see below), whose sum is σ = 2043588139848. Its totient is φ = 2043271867000.

The previous prime is 2043430003367. The next prime is 2043430003427. The reversal of 2043430003423 is 3243000343402.

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 2043430003423 - 2²⁵ = 2043396448991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2043430003391 and 2043430003400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043430003427) 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, 79048828 + ... + 79074673.

It is an arithmetic number, because the mean of its divisors is an integer number (510897034962).

Almost surely, 2^{2043430003423} is an apocalyptic number.

2043430003423 is a deficient number, since it is larger than the sum of its proper divisors (158136425).

2043430003423 is a wasteful number, since it uses less digits than its factorization.

2043430003423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158136424.

The product of its (nonzero) digits is 20736, while the sum is 28.

Adding to 2043430003423 its reverse (3243000343402), we get a palindrome (5286430346825).

The spelling of 2043430003423 in words is "two trillion, forty-three billion, four hundred thirty million, three thousand, four hundred twenty-three".