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12113131013321 = 134013232190209
BaseRepresentation
bin1011000001000100111011…
…0111110000010011001001
31120220000002221001000222212
42300101032313300103021
53041430143014411241
641432410124154505
72360100451526462
oct260211667602311
946800087030885
1012113131013321
113950171739628
121437733098a35
1369b356782aa0
142dc3c894dd69
15160154d3abeb
hexb044edf04c9

12113131013321 has 8 divisors (see below), whose sum is σ = 13048161041160. Its totient is φ = 11178565373952.

The previous prime is 12113131013267. The next prime is 12113131013341. The reversal of 12113131013321 is 12331013131121.

It can be written as a sum of positive squares in 4 ways, for example, as 2577164676025 + 9535966337296 = 1605355^2 + 3088036^2 .

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 12113131013321 - 26 = 12113131013257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12113131013341) 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, 116042936 + ... + 116147273.

It is an arithmetic number, because the mean of its divisors is an integer number (1631020130145).

Almost surely, 212113131013321 is an apocalyptic number.

It is an amenable number.

12113131013321 is a deficient number, since it is larger than the sum of its proper divisors (935030027839).

12113131013321 is a wasteful number, since it uses less digits than its factorization.

12113131013321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232194235.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 12113131013321 its reverse (12331013131121), we get a palindrome (24444144144442).

The spelling of 12113131013321 in words is "twelve trillion, one hundred thirteen billion, one hundred thirty-one million, thirteen thousand, three hundred twenty-one".

Divisors: 1 13 4013 52169 232190209 3018472717 931779308717 12113131013321