12203403423 has 4 divisors (see below), whose sum is σ = 16271204568. Its totient is φ = 8135602280.

The previous prime is 12203403409. The next prime is 12203403469. The reversal of 12203403423 is 32430430221.

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 12203403423 - 2⁸ = 12203403167 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12203403393 and 12203403402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12203403323) 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, 2033900568 + ... + 2033900573.

It is an arithmetic number, because the mean of its divisors is an integer number (4067801142).

Almost surely, 2^12203403423 is an apocalyptic number.

12203403423 is a deficient number, since it is larger than the sum of its proper divisors (4067801145).

12203403423 is an equidigital number, since it uses as much as digits as its factorization.

12203403423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4067801144.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 12203403423 its reverse (32430430221), we get a palindrome (44633833644).

The spelling of 12203403423 in words is "twelve billion, two hundred three million, four hundred three thousand, four hundred twenty-three".