21132313210135 has 32 divisors (see below), whose sum is σ = 26925961455360. Its totient is φ = 15866659786752.

The previous prime is 21132313210123. The next prime is 21132313210139. The reversal of 21132313210135 is 53101231323112.

It is a cyclic number.

It is not a de Polignac number, because 21132313210135 - 2¹³ = 21132313201943 is a prime.

It is a super-2 number, since 2×21132313210135² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21132313210139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 493389901 + ... + 493432729.

It is an arithmetic number, because the mean of its divisors is an integer number (841436295480).

Almost surely, 2^{21132313210135} is an apocalyptic number.

21132313210135 is a deficient number, since it is larger than the sum of its proper divisors (5793648245225).

21132313210135 is a wasteful number, since it uses less digits than its factorization.

21132313210135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59035.

The product of its (nonzero) digits is 3240, while the sum is 28.

Adding to 21132313210135 its reverse (53101231323112), we get a palindrome (74233544533247).

The spelling of 21132313210135 in words is "twenty-one trillion, one hundred thirty-two billion, three hundred thirteen million, two hundred ten thousand, one hundred thirty-five".