12436331042 has 4 divisors (see below), whose sum is σ = 18654496566. Its totient is φ = 6218165520.

The previous prime is 12436330999. The next prime is 12436331057. The reversal of 12436331042 is 24013363421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12325218361 + 111112681 = 111019^2 + 10541^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12436330996 and 12436331014.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3109082759 + ... + 3109082762.

Almost surely, 2^12436331042 is an apocalyptic number.

12436331042 is a deficient number, since it is larger than the sum of its proper divisors (6218165524).

12436331042 is an equidigital number, since it uses as much as digits as its factorization.

12436331042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6218165523.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 12436331042 its reverse (24013363421), we get a palindrome (36449694463).

The spelling of 12436331042 in words is "twelve billion, four hundred thirty-six million, three hundred thirty-one thousand, forty-two".