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121100524141 = 154978179809
BaseRepresentation
bin111000011001000100…
…1110101101001101101
3102120120201000000210211
41300302021311221231
53441003213233031
6131344404302421
711514661320412
oct1606211655155
9376521000724
10121100524141
11473a40a8203
121b5783a1a11
13b55c1bc79c
145c0b580109
15323b8e1bb1
hex1c32275a6d

121100524141 has 4 divisors (see below), whose sum is σ = 121178705500. Its totient is φ = 121022342784.

The previous prime is 121100524091. The next prime is 121100524169. The reversal of 121100524141 is 141425001121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 141425001121 = 178319117713.

It can be written as a sum of positive squares in 2 ways, for example, as 26651868516 + 94448655625 = 163254^2 + 307325^2 .

It is a cyclic number.

It is not a de Polignac number, because 121100524141 - 215 = 121100491373 is a prime.

It is a super-3 number, since 3×1211005241413 (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121100524841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39088356 + ... + 39091453.

It is an arithmetic number, because the mean of its divisors is an integer number (30294676375).

Almost surely, 2121100524141 is an apocalyptic number.

It is an amenable number.

121100524141 is a deficient number, since it is larger than the sum of its proper divisors (78181359).

121100524141 is an equidigital number, since it uses as much as digits as its factorization.

121100524141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78181358.

The product of its (nonzero) digits is 320, while the sum is 22.

Adding to 121100524141 its reverse (141425001121), we get a palindrome (262525525262).

The spelling of 121100524141 in words is "one hundred twenty-one billion, one hundred million, five hundred twenty-four thousand, one hundred forty-one".

Divisors: 1 1549 78179809 121100524141