12423705953 has 4 divisors (see below), whose sum is σ = 12482586288. Its totient is φ = 12364825620.

The previous prime is 12423705947. The next prime is 12423705989. The reversal of 12423705953 is 35950732421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35950732421 = 4027 ⋅8927423.

It is a cyclic number.

It is not a de Polignac number, because 12423705953 - 2¹⁴ = 12423689569 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12423705953.

It is not an unprimeable number, because it can be changed into a prime (12423705253) 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, 29439851 + ... + 29440272.

It is an arithmetic number, because the mean of its divisors is an integer number (3120646572).

Almost surely, 2^12423705953 is an apocalyptic number.

It is an amenable number.

12423705953 is a deficient number, since it is larger than the sum of its proper divisors (58880335).

12423705953 is an equidigital number, since it uses as much as digits as its factorization.

12423705953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58880334.

The product of its (nonzero) digits is 226800, while the sum is 41.

The spelling of 12423705953 in words is "twelve billion, four hundred twenty-three million, seven hundred five thousand, nine hundred fifty-three".