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13330321121 = 138911521453
BaseRepresentation
bin11000110101000110…
…01000111011100001
31021102000100110212002
430122203020323201
5204300030233441
610042431013345
7651223600655
oct143243107341
937360313762
1013330321121
115720689617
12270036a255
1313459579a0
14906592a65
1553044eb9b
hex31a8c8ee1

13330321121 has 8 divisors (see below), whose sum is σ = 14517032040. Its totient is φ = 12166653312.

The previous prime is 13330321097. The next prime is 13330321133. The reversal of 13330321121 is 12112303331.

It can be written as a sum of positive squares in 4 ways, for example, as 988222096 + 12342099025 = 31436^2 + 111095^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13330321121 - 210 = 13330320097 is a prime.

It is a super-2 number, since 2×133303211212 (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 = 13330321093 and 13330321102.

It is not an unprimeable number, because it can be changed into a prime (13330321181) 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, 5759570 + ... + 5761883.

It is an arithmetic number, because the mean of its divisors is an integer number (1814629005).

Almost surely, 213330321121 is an apocalyptic number.

It is an amenable number.

13330321121 is a deficient number, since it is larger than the sum of its proper divisors (1186710919).

13330321121 is a wasteful number, since it uses less digits than its factorization.

13330321121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11521555.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13330321121 its reverse (12112303331), we get a palindrome (25442624452).

The spelling of 13330321121 in words is "thirteen billion, three hundred thirty million, three hundred twenty-one thousand, one hundred twenty-one".

Divisors: 1 13 89 1157 11521453 149778889 1025409317 13330321121