21535353041 has 8 divisors (see below), whose sum is σ = 22803419880. Its totient is φ = 20267428608.

The previous prime is 21535353029. The next prime is 21535353083. The reversal of 21535353041 is 14035353512.

It can be written as a sum of positive squares in 4 ways, for example, as 10636828225 + 10898524816 = 103135^2 + 104396^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 21535353041 - 2³⁰ = 20461611217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21535352989 and 21535353007.

It is not an unprimeable number, because it can be changed into a prime (21535353841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582455 + ... + 618323.

It is an arithmetic number, because the mean of its divisors is an integer number (2850427485).

Almost surely, 2^21535353041 is an apocalyptic number.

It is an amenable number.

21535353041 is a deficient number, since it is larger than the sum of its proper divisors (1268066839).

21535353041 is a wasteful number, since it uses less digits than its factorization.

21535353041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71203.

The product of its (nonzero) digits is 27000, while the sum is 32.

The spelling of 21535353041 in words is "twenty-one billion, five hundred thirty-five million, three hundred fifty-three thousand, forty-one".