13232213521 has 2 divisors, whose sum is σ = 13232213522. Its totient is φ = 13232213520.

The previous prime is 13232213509. The next prime is 13232213543. The reversal of 13232213521 is 12531223231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12047477121 + 1184736400 = 109761^2 + 34420^2 .

It is a cyclic number.

It is not a de Polignac number, because 13232213521 - 2²⁹ = 12695342609 is a prime.

It is a super-3 number, since 3×13232213521³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (13232213591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6616106760 + 6616106761.

It is an arithmetic number, because the mean of its divisors is an integer number (6616106761).

Almost surely, 2^13232213521 is an apocalyptic number.

It is an amenable number.

13232213521 is a deficient number, since it is larger than the sum of its proper divisors (1).

13232213521 is an equidigital number, since it uses as much as digits as its factorization.

13232213521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 25.

Adding to 13232213521 its reverse (12531223231), we get a palindrome (25763436752).

The spelling of 13232213521 in words is "thirteen billion, two hundred thirty-two million, two hundred thirteen thousand, five hundred twenty-one".