12102432423 has 4 divisors (see below), whose sum is σ = 16136576568. Its totient is φ = 8068288280.

The previous prime is 12102432421. The next prime is 12102432467. The reversal of 12102432423 is 32423420121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32423420121 = 3 ⋅10807806707.

It is a cyclic number.

It is not a de Polignac number, because 12102432423 - 2¹ = 12102432421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12102432393 and 12102432402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102432421) 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, 2017072068 + ... + 2017072073.

It is an arithmetic number, because the mean of its divisors is an integer number (4034144142).

Almost surely, 2^12102432423 is an apocalyptic number.

12102432423 is a deficient number, since it is larger than the sum of its proper divisors (4034144145).

12102432423 is an equidigital number, since it uses as much as digits as its factorization.

12102432423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4034144144.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12102432423 its reverse (32423420121), we get a palindrome (44525852544).

The spelling of 12102432423 in words is "twelve billion, one hundred two million, four hundred thirty-two thousand, four hundred twenty-three".