12402243123 has 8 divisors (see below), whose sum is σ = 16688034000. Its totient is φ = 8192307168.

The previous prime is 12402243059. The next prime is 12402243131. The reversal of 12402243123 is 32134220421.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12402243123 - 2⁶ = 12402243059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12402243093 and 12402243102.

It is not an unprimeable number, because it can be changed into a prime (12402243163) 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 7 ways as a sum of consecutive naturals, for example, 18963348 + ... + 18964001.

It is an arithmetic number, because the mean of its divisors is an integer number (2086004250).

Almost surely, 2^12402243123 is an apocalyptic number.

12402243123 is a deficient number, since it is larger than the sum of its proper divisors (4285790877).

12402243123 is a wasteful number, since it uses less digits than its factorization.

12402243123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37927461.

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

Adding to 12402243123 its reverse (32134220421), we get a palindrome (44536463544).

The spelling of 12402243123 in words is "twelve billion, four hundred two million, two hundred forty-three thousand, one hundred twenty-three".