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12120213013 = 1031572233361
BaseRepresentation
bin10110100100110101…
…11100011000010101
31011021200022121121021
423102122330120111
5144310233304023
65322402121141
7606231052666
oct132232743025
934250277537
1012120213013
11515a5a9477
1224230501b1
1311b203469c
1482d99136d
154ae0b935d
hex2d26bc615

12120213013 has 16 divisors (see below), whose sum is σ = 12374742016. Its totient is φ = 11869079040.

The previous prime is 12120212999. The next prime is 12120213023. The reversal of 12120213013 is 31031202121.

12120213013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12120213013 - 221 = 12118115861 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 (12120213023) 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 15 ways as a sum of consecutive naturals, for example, 3604453 + ... + 3607813.

It is an arithmetic number, because the mean of its divisors is an integer number (773421376).

Almost surely, 212120213013 is an apocalyptic number.

It is an amenable number.

12120213013 is a deficient number, since it is larger than the sum of its proper divisors (254529003).

12120213013 is a wasteful number, since it uses less digits than its factorization.

12120213013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3844.

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

Adding to 12120213013 its reverse (31031202121), we get a palindrome (43151415134).

The spelling of 12120213013 in words is "twelve billion, one hundred twenty million, two hundred thirteen thousand, thirteen".

Divisors: 1 103 157 223 3361 16171 22969 35011 346183 527677 749503 3606133 54350731 77198809 117671971 12120213013