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12121201009183 = 72247371449167
BaseRepresentation
bin1011000001100010111111…
…1000010110001000011111
31120220202221100011022011111
42300120233320112020133
53042043204424243213
641440223004202451
72360504442415300
oct260305770261037
946822840138144
1012121201009183
113953632a749a2
121439205839427
1369c041662876
142dc9526387a7
15160478560a3d
hexb062fe1621f

12121201009183 has 6 divisors (see below), whose sum is σ = 14100172602576. Its totient is φ = 10389600864972.

The previous prime is 12121201009171. The next prime is 12121201009219. The reversal of 12121201009183 is 38190010212121.

12121201009183 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-12121201009183 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 (12121201004183) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123685724535 + ... + 123685724632.

It is an arithmetic number, because the mean of its divisors is an integer number (2350028767096).

Almost surely, 212121201009183 is an apocalyptic number.

12121201009183 is a deficient number, since it is larger than the sum of its proper divisors (1978971593393).

12121201009183 is an equidigital number, since it uses as much as digits as its factorization.

12121201009183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247371449181 (or 247371449174 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 31.

The spelling of 12121201009183 in words is "twelve trillion, one hundred twenty-one billion, two hundred one million, nine thousand, one hundred eighty-three".

Divisors: 1 7 49 247371449167 1731600144169 12121201009183