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12203230121305 = 5109197157971983
BaseRepresentation
bin1011000110010100100100…
…1100100100110101011001
31121012121200002101221201021
42301211021030210311121
53044414203402340210
641542030404522441
72366440263361546
oct261451114446531
947177602357637
1012203230121305
1139853a72a1a43
1214510990b0421
136a69b4c95832
143028d4a89bcd
15162679c42bda
hexb1949324d59

12203230121305 has 32 divisors (see below), whose sum is σ = 14862853209600. Its totient is φ = 9617688928512.

The previous prime is 12203230121293. The next prime is 12203230121333. The reversal of 12203230121305 is 50312103230221.

It is a cyclic number.

It is not a de Polignac number, because 12203230121305 - 211 = 12203230119257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12203230121305.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169493344 + ... + 169565326.

It is an arithmetic number, because the mean of its divisors is an integer number (464464162800).

Almost surely, 212203230121305 is an apocalyptic number.

It is an amenable number.

12203230121305 is a deficient number, since it is larger than the sum of its proper divisors (2659623088295).

12203230121305 is a wasteful number, since it uses less digits than its factorization.

12203230121305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73873.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 12203230121305 its reverse (50312103230221), we get a palindrome (62515333351526).

The spelling of 12203230121305 in words is "twelve trillion, two hundred three billion, two hundred thirty million, one hundred twenty-one thousand, three hundred five".

Divisors: 1 5 109 197 545 985 1579 7895 21473 71983 107365 172111 311063 359915 860555 1555315 7846147 14180651 33905867 39230735 70903255 113661157 169529335 568305785 1545690959 7728454795 12389066113 22391247929 61945330565 111956239645 2440646024261 12203230121305