12145103635642 has 8 divisors (see below), whose sum is σ = 18218360521332. Its totient is φ = 6072316795200.

The previous prime is 12145103635603. The next prime is 12145103635673. The reversal of 12145103635642 is 24653630154121.

It can be written as a sum of positive squares in 2 ways, for example, as 11753576865801 + 391526769841 = 3428349^2 + 625721^2 .

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

It is an unprimeable number.

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, 117446709 + ... + 117550072.

Almost surely, 2^{12145103635642} is an apocalyptic number.

12145103635642 is a deficient number, since it is larger than the sum of its proper divisors (6073256885690).

12145103635642 is a wasteful number, since it uses less digits than its factorization.

12145103635642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235022624.

The product of its (nonzero) digits is 518400, while the sum is 43.

Adding to 12145103635642 its reverse (24653630154121), we get a palindrome (36798733789763).

The spelling of 12145103635642 in words is "twelve trillion, one hundred forty-five billion, one hundred three million, six hundred thirty-five thousand, six hundred forty-two".