21241035355 has 16 divisors (see below), whose sum is σ = 26384940000. Its totient is φ = 16396441600.

The previous prime is 21241035341. The next prime is 21241035379. The reversal of 21241035355 is 55353014212.

It is not a de Polignac number, because 21241035355 - 2⁷ = 21241035227 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 186396 + ... + 277894.

It is an arithmetic number, because the mean of its divisors is an integer number (1649058750).

Almost surely, 2^21241035355 is an apocalyptic number.

21241035355 is a deficient number, since it is larger than the sum of its proper divisors (5143904645).

21241035355 is a wasteful number, since it uses less digits than its factorization.

21241035355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93134.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 21241035355 its reverse (55353014212), we get a palindrome (76594049567).

The spelling of 21241035355 in words is "twenty-one billion, two hundred forty-one million, thirty-five thousand, three hundred fifty-five".