21412135435 has 8 divisors (see below), whose sum is σ = 25801180416. Its totient is φ = 17058629760.

The previous prime is 21412135417. The next prime is 21412135469. The reversal of 21412135435 is 53453121412.

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

It is not a de Polignac number, because 21412135435 - 2¹¹ = 21412133387 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21412135397 and 21412135406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8883499 + ... + 8885908.

It is an arithmetic number, because the mean of its divisors is an integer number (3225147552).

Almost surely, 2^21412135435 is an apocalyptic number.

21412135435 is a deficient number, since it is larger than the sum of its proper divisors (4389044981).

21412135435 is a wasteful number, since it uses less digits than its factorization.

21412135435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17769653.

The product of its digits is 14400, while the sum is 31.

Adding to 21412135435 its reverse (53453121412), we get a palindrome (74865256847).

The spelling of 21412135435 in words is "twenty-one billion, four hundred twelve million, one hundred thirty-five thousand, four hundred thirty-five".