12354204423 has 12 divisors (see below), whose sum is σ = 18105886904. Its totient is φ = 7487396400.

The previous prime is 12354204407. The next prime is 12354204449. The reversal of 12354204423 is 32440245321.

It is not a de Polignac number, because 12354204423 - 2⁴ = 12354204407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12354204463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17016448 + ... + 17017173.

Almost surely, 2^12354204423 is an apocalyptic number.

12354204423 is a deficient number, since it is larger than the sum of its proper divisors (5751682481).

12354204423 is a wasteful number, since it uses less digits than its factorization.

12354204423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34033646 (or 34033635 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 12354204423 its reverse (32440245321), we get a palindrome (44794449744).

The spelling of 12354204423 in words is "twelve billion, three hundred fifty-four million, two hundred four thousand, four hundred twenty-three".