12383635551242 has 8 divisors (see below), whose sum is σ = 18575668836036. Its totient is φ = 6191745939232.

The previous prime is 12383635551227. The next prime is 12383635551247. The reversal of 12383635551242 is 24215553638321.

It can be written as a sum of positive squares in 2 ways, for example, as 11575652094601 + 807983456641 = 3402301^2 + 898879^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12383635551247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35702453 + ... + 36047640.

Almost surely, 2^{12383635551242} is an apocalyptic number.

12383635551242 is a deficient number, since it is larger than the sum of its proper divisors (6192033284794).

12383635551242 is an equidigital number, since it uses as much as digits as its factorization.

12383635551242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71836392.

The product of its digits is 5184000, while the sum is 50.

The spelling of 12383635551242 in words is "twelve trillion, three hundred eighty-three billion, six hundred thirty-five million, five hundred fifty-one thousand, two hundred forty-two".