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12122110330013 = 80914984067157
BaseRepresentation
bin1011000001100110011000…
…0101001000010010011101
31120220212021201012120211202
42300121212011020102131
53042102040221030023
641440453130125245
72360536123464365
oct260314605102235
946825251176752
1012122110330013
113953a5a293112
12143941a280825
1369c157b70928
142dc9db2dd9a5
151604cd2ce128
hexb066614849d

12122110330013 has 4 divisors (see below), whose sum is σ = 12137094397980. Its totient is φ = 12107126262048.

The previous prime is 12122110329997. The next prime is 12122110330049. The reversal of 12122110330013 is 31003301122121.

It is a happy number.

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 4679897176249 + 7442213153764 = 2163307^2 + 2728042^2 .

It is a cyclic number.

It is not a de Polignac number, because 12122110330013 - 24 = 12122110329997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122110830013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7492032770 + ... + 7492034387.

It is an arithmetic number, because the mean of its divisors is an integer number (3034273599495).

Almost surely, 212122110330013 is an apocalyptic number.

It is an amenable number.

12122110330013 is a deficient number, since it is larger than the sum of its proper divisors (14984067967).

12122110330013 is an equidigital number, since it uses as much as digits as its factorization.

12122110330013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14984067966.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 12122110330013 its reverse (31003301122121), we get a palindrome (43125411452134).

The spelling of 12122110330013 in words is "twelve trillion, one hundred twenty-two billion, one hundred ten million, three hundred thirty thousand, thirteen".

Divisors: 1 809 14984067157 12122110330013