12344200042 has 4 divisors (see below), whose sum is σ = 18516300066. Its totient is φ = 6172100020.

The previous prime is 12344199979. The next prime is 12344200051. The reversal of 12344200042 is 24000244321.

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: 24000244321 = 331 ⋅72508291.

It can be written as a sum of positive squares in only one way, i.e., 10483916881 + 1860283161 = 102391^2 + 43131^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 12344199986 and 12344200022.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3086050009 + ... + 3086050012.

Almost surely, 2^12344200042 is an apocalyptic number.

12344200042 is a deficient number, since it is larger than the sum of its proper divisors (6172100024).

12344200042 is an equidigital number, since it uses as much as digits as its factorization.

12344200042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6172100023.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 12344200042 its reverse (24000244321), we get a palindrome (36344444363).

The spelling of 12344200042 in words is "twelve billion, three hundred forty-four million, two hundred thousand, forty-two".