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13232321213 = 16091822343
BaseRepresentation
bin11000101001011010…
…10011001010111101
31021011011221120020212
430110231103022331
5204044433234323
610025010322205
7645623605646
oct142455231275
937134846225
1013232321213
115680333861
122693589365
13132b564687
148d75626cd
15526a42b78
hex314b532bd

13232321213 has 4 divisors (see below), whose sum is σ = 13233159648. Its totient is φ = 13231482780.

The previous prime is 13232321197. The next prime is 13232321227. The reversal of 13232321213 is 31212323231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13232321213 - 24 = 13232321197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13232321273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395081 + ... + 427262.

It is an arithmetic number, because the mean of its divisors is an integer number (3308289912).

Almost surely, 213232321213 is an apocalyptic number.

It is an amenable number.

13232321213 is a deficient number, since it is larger than the sum of its proper divisors (838435).

13232321213 is an equidigital number, since it uses as much as digits as its factorization.

13232321213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838434.

The product of its digits is 1296, while the sum is 23.

Adding to 13232321213 its reverse (31212323231), we get a palindrome (44444644444).

The spelling of 13232321213 in words is "thirteen billion, two hundred thirty-two million, three hundred twenty-one thousand, two hundred thirteen".

Divisors: 1 16091 822343 13232321213