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12120112001101 = 131192778168551
BaseRepresentation
bin1011000001011110111011…
…1110000111000001001101
31120220200010102222221220211
42300113232332013001031
53042033442133013401
641435522543042421
72360435450122516
oct260275676070115
946820112887824
1012120112001101
113953124288015
121438b60ba0411
1369bbc9b600a0
142dc88bb5ba0d
15160412b4b951
hexb05eef8704d

12120112001101 has 8 divisors (see below), whose sum is σ = 13053522835584. Its totient is φ = 11186857527600.

The previous prime is 12120112001093. The next prime is 12120112001131. The reversal of 12120112001101 is 10110021102121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12120112001101 - 23 = 12120112001093 is a prime.

It is a super-2 number, since 2×121201120011012 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120112001131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38929225 + ... + 39239326.

It is an arithmetic number, because the mean of its divisors is an integer number (1631690354448).

Almost surely, 212120112001101 is an apocalyptic number.

It is an amenable number.

12120112001101 is a deficient number, since it is larger than the sum of its proper divisors (933410834483).

12120112001101 is a wasteful number, since it uses less digits than its factorization.

12120112001101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78180491.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12120112001101 its reverse (10110021102121), we get a palindrome (22230133103222).

The spelling of 12120112001101 in words is "twelve trillion, one hundred twenty billion, one hundred twelve million, one thousand, one hundred one".

Divisors: 1 13 11927 155051 78168551 1016191163 932316307777 12120112001101