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12120141101 = 91571323593
BaseRepresentation
bin10110100100110101…
…01010110100101101
31011021200011221221212
423102122222310231
5144310224003401
65322400404205
7606230333225
oct132232526455
934250157855
1012120141101
11515a55a442
122423016665
1311b200aa33
1482d973085
154ae0a2dbb
hex2d26aad2d

12120141101 has 4 divisors (see below), whose sum is σ = 12121473852. Its totient is φ = 12118808352.

The previous prime is 12120141079. The next prime is 12120141113. The reversal of 12120141101 is 10114102121.

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 660438601 + 11459702500 = 25699^2 + 107050^2 .

It is a cyclic number.

It is not a de Polignac number, because 12120141101 - 26 = 12120141037 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 (12120141161) 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, 652640 + ... + 670953.

It is an arithmetic number, because the mean of its divisors is an integer number (3030368463).

Almost surely, 212120141101 is an apocalyptic number.

It is an amenable number.

12120141101 is a deficient number, since it is larger than the sum of its proper divisors (1332751).

12120141101 is an equidigital number, since it uses as much as digits as its factorization.

12120141101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332750.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12120141101 its reverse (10114102121), we get a palindrome (22234243222).

The spelling of 12120141101 in words is "twelve billion, one hundred twenty million, one hundred forty-one thousand, one hundred one".

Divisors: 1 9157 1323593 12120141101