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12131310022 = 2131463931873
BaseRepresentation
bin10110100110001010…
…10001100111000110
31011022110012101211121
423103011101213012
5144321103410042
65323440024154
7606424301536
oct132305214706
934273171747
1012131310022
115165898857
12242690205a
1311b441b670
1483123d4c6
154b005c367
hex2d31519c6

12131310022 has 16 divisors (see below), whose sum is σ = 19598685120. Its totient is φ = 5598508032.

The previous prime is 12131309999. The next prime is 12131310029. The reversal of 12131310022 is 22001313121.

It is a junction number, because it is equal to n+sod(n) for n = 12131309978 and 12131310005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131310029) 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, 364678 + ... + 396550.

It is an arithmetic number, because the mean of its divisors is an integer number (1224917820).

Almost surely, 212131310022 is an apocalyptic number.

12131310022 is a deficient number, since it is larger than the sum of its proper divisors (7467375098).

12131310022 is a wasteful number, since it uses less digits than its factorization.

12131310022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46527.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12131310022 its reverse (22001313121), we get a palindrome (34132623143).

The spelling of 12131310022 in words is "twelve billion, one hundred thirty-one million, three hundred ten thousand, twenty-two".

Divisors: 1 2 13 26 14639 29278 31873 63746 190307 380614 414349 828698 466588847 933177694 6065655011 12131310022