12423210451 has 4 divisors (see below), whose sum is σ = 12633773400. Its totient is φ = 12212647504.

The previous prime is 12423210427. The next prime is 12423210487. The reversal of 12423210451 is 15401232421.

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 12423210451 - 2⁷ = 12423210323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12423210421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105281386 + ... + 105281503.

It is an arithmetic number, because the mean of its divisors is an integer number (3158443350).

Almost surely, 2^12423210451 is an apocalyptic number.

12423210451 is a deficient number, since it is larger than the sum of its proper divisors (210562949).

12423210451 is an equidigital number, since it uses as much as digits as its factorization.

12423210451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210562948.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 12423210451 its reverse (15401232421), we get a palindrome (27824442872).

The spelling of 12423210451 in words is "twelve billion, four hundred twenty-three million, two hundred ten thousand, four hundred fifty-one".