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12100131100121 = 232781718912631
BaseRepresentation
bin1011000000010100100000…
…0001000001010111011001
31120211202112221102000121012
42300011020001001113121
53041222032030200441
641422420135023305
72356130346223061
oct260051001012731
946752487360535
1012100131100121
113945700613409
12143510550ab35
1369a06441175c
142db9142083a1
1515eb439049eb
hexb01480415d9

12100131100121 has 8 divisors (see below), whose sum is σ = 12626678327424. Its totient is φ = 11573621753760.

The previous prime is 12100131100091. The next prime is 12100131100129. The reversal of 12100131100121 is 12100113100121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12100131100121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12100131100096 and 12100131100105.

It is not an unprimeable number, because it can be changed into a prime (12100131100129) 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, 8816525 + ... + 10096106.

It is an arithmetic number, because the mean of its divisors is an integer number (1578334790928).

Almost surely, 212100131100121 is an apocalyptic number.

It is an amenable number.

12100131100121 is a deficient number, since it is larger than the sum of its proper divisors (526547227303).

12100131100121 is a wasteful number, since it uses less digits than its factorization.

12100131100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18940471.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 12100131100121 its reverse (12100113100121), we get a palindrome (24200244200242).

The spelling of 12100131100121 in words is "twelve trillion, one hundred billion, one hundred thirty-one million, one hundred thousand, one hundred twenty-one".

Divisors: 1 23 27817 639791 18912631 434990513 526092656527 12100131100121