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13310331121 = 18173537741
BaseRepresentation
bin11000110010101101…
…11000100011110001
31021100121201212201201
430121112320203301
5204224421043441
610040434331201
7650561643043
oct143126704361
937317655651
1013310331121
11571037585a
1226b5729b01
131341778c99
14903a6ba93
1552d801c31
hex3195b88f1

13310331121 has 4 divisors (see below), whose sum is σ = 13383869044. Its totient is φ = 13236793200.

The previous prime is 13310331113. The next prime is 13310331131. The reversal of 13310331121 is 12113301331.

13310331121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1555434721 + 11754896400 = 39439^2 + 108420^2 .

It is a cyclic number.

It is not a de Polignac number, because 13310331121 - 23 = 13310331113 is a prime.

It is a super-2 number, since 2×133103311212 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13310331131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36768690 + ... + 36769051.

It is an arithmetic number, because the mean of its divisors is an integer number (3345967261).

Almost surely, 213310331121 is an apocalyptic number.

It is an amenable number.

13310331121 is a deficient number, since it is larger than the sum of its proper divisors (73537923).

13310331121 is an equidigital number, since it uses as much as digits as its factorization.

13310331121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73537922.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 13310331121 its reverse (12113301331), we get a palindrome (25423632452).

The spelling of 13310331121 in words is "thirteen billion, three hundred ten million, three hundred thirty-one thousand, one hundred twenty-one".

Divisors: 1 181 73537741 13310331121