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11313221223 = 36161820881
BaseRepresentation
bin10101000100101001…
…00000111001100111
31002012102211011222110
422202110200321213
5141132141034343
65110333332103
7550231536153
oct124224407147
932172734873
1011313221223
114886022607
122238937033
1310b3aa4255
14794726063
15463310833
hex2a2520e67

11313221223 has 8 divisors (see below), whose sum is σ = 15331578736. Its totient is φ = 7418505600.

The previous prime is 11313221207. The next prime is 11313221237. The reversal of 11313221223 is 32212231311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11313221223 - 24 = 11313221207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11313221223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11313221203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30910258 + ... + 30910623.

It is an arithmetic number, because the mean of its divisors is an integer number (1916447342).

Almost surely, 211313221223 is an apocalyptic number.

11313221223 is a deficient number, since it is larger than the sum of its proper divisors (4018357513).

11313221223 is an equidigital number, since it uses as much as digits as its factorization.

11313221223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61820945.

The product of its digits is 432, while the sum is 21.

Adding to 11313221223 its reverse (32212231311), we get a palindrome (43525452534).

The spelling of 11313221223 in words is "eleven billion, three hundred thirteen million, two hundred twenty-one thousand, two hundred twenty-three".

Divisors: 1 3 61 183 61820881 185462643 3771073741 11313221223