12541435402 has 8 divisors (see below), whose sum is σ = 18978632676. Its totient is φ = 6215224512.

The previous prime is 12541435337. The next prime is 12541435409. The reversal of 12541435402 is 20453414521.

12541435402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12501252481 + 40182921 = 111809^2 + 6339^2 .

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 (12541435409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27746313 + ... + 27746764.

Almost surely, 2^12541435402 is an apocalyptic number.

12541435402 is a deficient number, since it is larger than the sum of its proper divisors (6437197274).

12541435402 is a wasteful number, since it uses less digits than its factorization.

12541435402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55493192.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 12541435402 its reverse (20453414521), we get a palindrome (32994849923).

The spelling of 12541435402 in words is "twelve billion, five hundred forty-one million, four hundred thirty-five thousand, four hundred two".