21353301135 has 16 divisors (see below), whose sum is σ = 37961424480. Its totient is φ = 11388427200.

The previous prime is 21353301127. The next prime is 21353301209. The reversal of 21353301135 is 53110335312.

21353301135 is a `hidden beast` number, since 2 + 1 + 353 + 301 + 1 + 3 + 5 = 666.

It is not a de Polignac number, because 21353301135 - 2³ = 21353301127 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 21353301099 and 21353301108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79086166 + ... + 79086435.

It is an arithmetic number, because the mean of its divisors is an integer number (2372589030).

Almost surely, 2^21353301135 is an apocalyptic number.

21353301135 is a deficient number, since it is larger than the sum of its proper divisors (16608123345).

21353301135 is a wasteful number, since it uses less digits than its factorization.

21353301135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158172615 (or 158172609 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 27.

Adding to 21353301135 its reverse (53110335312), we get a palindrome (74463636447).

The spelling of 21353301135 in words is "twenty-one billion, three hundred fifty-three million, three hundred one thousand, one hundred thirty-five".