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121322941081 = 17731372512843
BaseRepresentation
bin111000011111101101…
…0010010101010011001
3102121011012111222111021
41300333122102222121
53441432133103311
6131422431402441
711523331661326
oct1607732225231
9377135458437
10121322941081
11474a8701361
121b61a983421
13b5962c5344
145c2cd19b4d
1532511c8171
hex1c3f692a99

121322941081 has 32 divisors (see below), whose sum is σ = 131738721408. Its totient is φ = 111315456000.

The previous prime is 121322941009. The next prime is 121322941087. The reversal of 121322941081 is 180149223121.

It is not a de Polignac number, because 121322941081 - 27 = 121322940953 is a prime.

It is a super-2 number, since 2×1213229410812 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121322941087) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42672846 + ... + 42675688.

It is an arithmetic number, because the mean of its divisors is an integer number (4116835044).

Almost surely, 2121322941081 is an apocalyptic number.

It is an amenable number.

121322941081 is a deficient number, since it is larger than the sum of its proper divisors (10415780327).

121322941081 is a wasteful number, since it uses less digits than its factorization.

121322941081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3321.

The product of its (nonzero) digits is 6912, while the sum is 34.

The spelling of 121322941081 in words is "one hundred twenty-one billion, three hundred twenty-two million, nine hundred forty-one thousand, eighty-one".

Divisors: 1 17 73 137 251 1241 2329 2843 4267 10001 18323 34387 48331 170017 207539 311491 389491 584579 713593 2510251 3528163 6621347 12131081 28432843 42674267 52092289 97762241 483358331 885568913 1661958097 7136643593 121322941081