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13232332231 = 49853265427
BaseRepresentation
bin11000101001011010…
…10101110111000111
31021011011222010100221
430110231111313013
5204044434112411
610025010445211
7645623653036
oct142455256707
937134863327
1013232332231
115680341068
122693593807
13132b5696b1
148d756671d
15526a46071
hex314b55dc7

13232332231 has 4 divisors (see below), whose sum is σ = 13232647512. Its totient is φ = 13232016952.

The previous prime is 13232332213. The next prime is 13232332259. The reversal of 13232332231 is 13223323231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13232332231 - 25 = 13232332199 is a prime.

It is a super-2 number, since 2×132323322312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13232332196 and 13232332205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13232332261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82861 + ... + 182566.

It is an arithmetic number, because the mean of its divisors is an integer number (3308161878).

Almost surely, 213232332231 is an apocalyptic number.

13232332231 is a deficient number, since it is larger than the sum of its proper divisors (315281).

13232332231 is an equidigital number, since it uses as much as digits as its factorization.

13232332231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315280.

The product of its digits is 3888, while the sum is 25.

Adding to 13232332231 its reverse (13223323231), we get a palindrome (26455655462).

The spelling of 13232332231 in words is "thirteen billion, two hundred thirty-two million, three hundred thirty-two thousand, two hundred thirty-one".

Divisors: 1 49853 265427 13232332231