12312201424123 has 4 divisors (see below), whose sum is σ = 12313655572360. Its totient is φ = 12310747275888.

The previous prime is 12312201424099. The next prime is 12312201424139. The reversal of 12312201424123 is 32142410221321.

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 12312201424123 - 2⁴¹ = 10113178168571 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12312201424091 and 12312201424100.

It is not an unprimeable number, because it can be changed into a prime (12312201422123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 727061418 + ... + 727078351.

It is an arithmetic number, because the mean of its divisors is an integer number (3078413893090).

Almost surely, 2^{12312201424123} is an apocalyptic number.

12312201424123 is a deficient number, since it is larger than the sum of its proper divisors (1454148237).

12312201424123 is an equidigital number, since it uses as much as digits as its factorization.

12312201424123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454148236.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 12312201424123 its reverse (32142410221321), we get a palindrome (44454611645444).

The spelling of 12312201424123 in words is "twelve trillion, three hundred twelve billion, two hundred one million, four hundred twenty-four thousand, one hundred twenty-three".