21532350504135 has 16 divisors (see below), whose sum is σ = 34483455184896. Its totient is φ = 11473355476128.

The previous prime is 21532350504061. The next prime is 21532350504151. The reversal of 21532350504135 is 53140505323512.

It is not a de Polignac number, because 21532350504135 - 2³⁵ = 21497990765767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21532350504093 and 21532350504102.

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, 660282699 + ... + 660315308.

It is an arithmetic number, because the mean of its divisors is an integer number (2155215949056).

Almost surely, 2^{21532350504135} is an apocalyptic number.

21532350504135 is a deficient number, since it is larger than the sum of its proper divisors (12951104680761).

21532350504135 is a wasteful number, since it uses less digits than its factorization.

21532350504135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320599102.

The product of its (nonzero) digits is 270000, while the sum is 39.

Adding to 21532350504135 its reverse (53140505323512), we get a palindrome (74672855827647).

The spelling of 21532350504135 in words is "twenty-one trillion, five hundred thirty-two billion, three hundred fifty million, five hundred four thousand, one hundred thirty-five".