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13230121203 = 3313234139971
BaseRepresentation
bin11000101001001001…
…11010000011110011
31021011000210210102000
430110210322003303
5204043402334303
610024451225043
7645566113635
oct142444720363
937130723360
1013230121203
11567a070972
1226928a8183
13132ac741b0
148d714ca55
1552675ada3
hex31493a0f3

13230121203 has 64 divisors (see below), whose sum is σ = 22563394560. Its totient is φ = 7597497600.

The previous prime is 13230121171. The next prime is 13230121217. The reversal of 13230121203 is 30212103231.

It is not a de Polignac number, because 13230121203 - 25 = 13230121171 is a prime.

It is a super-3 number, since 3×132301212033 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (13230121253) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 311008 + ... + 350978.

It is an arithmetic number, because the mean of its divisors is an integer number (352553040).

Almost surely, 213230121203 is an apocalyptic number.

13230121203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13230121203 is a deficient number, since it is larger than the sum of its proper divisors (9333273357).

13230121203 is a wasteful number, since it uses less digits than its factorization.

13230121203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40057 (or 40051 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13230121203 its reverse (30212103231), we get a palindrome (43442224434).

The spelling of 13230121203 in words is "thirteen billion, two hundred thirty million, one hundred twenty-one thousand, two hundred three".

Divisors: 1 3 9 13 23 27 39 41 69 117 123 207 299 351 369 533 621 897 943 1107 1599 2691 2829 4797 8073 8487 12259 14391 25461 36777 39971 110331 119913 330993 359739 519623 919333 1079217 1558869 1638811 2757999 4676607 4916433 8273997 11951329 14029821 14749299 21304543 24821991 35853987 37692653 44247897 63913629 107561961 113077959 191740887 322685883 339233877 490004489 575222661 1017701631 1470013467 4410040401 13230121203